Memory leak in Juniper Junos OS
Priority LOW 29CWE-401Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-401.
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows an adjacent attacker to cause a Denial of Service (DoS) by sending genuine BGP flowspec packets which cause an FPC heap memory leak. Once having run out of memory the FPC will crash and restart along with a core dump. Continued receipted of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS All versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos Evolved is not affected.
Why it matters now
EPSS 0.00397 34th percentileScored 2026-11-07
Fix Fixed Junos OS (Juniper Networks): 18.4R3-S9, 19.1R3-S7, 19.2R1-S7 +11
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Juniper | Junos OS | before 18.4R3-S9; 19.1 to before 19.1R3-S7; 19.2 to before 19.2R1-S7, 19.2R3-S3; 19.3 to before 19.3R2-S6, 19.3R3-S3; 19.4 to before 19.4R1-S4, 19.4R3-S6; 20.1 to before 20.1R2-S2, 20.1R3; 20.2 to before 20.2R3-S1; 20.3 to before 20.3R3; 20.4 to before 20.4R3; 21.1 to before 21.1R2 | 18.4R3-S9, 19.1R3-S7, 19.2R1-S7, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R1-S4, 19.4R3-S6, 20.1R2-S2, 20.1R3, 20.2R3-S1, 20.3R3, 20.4R3, 21.1R2 | Patch available | CNA |
- Junos OS VendorJuniper Affected before 18.4R3-S9; 19.1 to before 19.1R3-S7; 19.2 to before 19.2R1-S7, 19.2R3-S3; 19.3 to before 19.3R2-S6, 19.3R3-S3; 19.4 to before 19.4R1-S4, 19.4R3-S6; 20.1 to before 20.1R2-S2, 20.1R3; 20.2 to before 20.2R3-S1; 20.3 to before 20.3R3; 20.4 to before 20.4R3; 21.1 to before 21.1R2 Fixed in 18.4R3-S9, 19.1R3-S7, 19.2R1-S7, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R1-S4, 19.4R3-S6, 20.1R2-S2, 20.1R3, 20.2R3-S1, 20.3R3, 20.4R3, 21.1R2 Patch available CNA
CPE configurations NVD · 115
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* | 18.4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* | 18.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* | 18.4 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* | 18.4 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* | 18.4 r1-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* | 18.4 r1-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* | 18.4 r1-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:* | 18.4 r1-s6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:* | 18.4 r1-s7 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:* | 18.4 r2 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* Versions 18.4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* Versions 18.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* Versions 18.4 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* Versions 18.4 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* Versions 18.4 r1-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* Versions 18.4 r1-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* Versions 18.4 r1-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:* Versions 18.4 r1-s6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:* Versions 18.4 r1-s7 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:* Versions 18.4 r2 Vulnerable ·Juniper
Show 105 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:* | 18.4 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:* | 18.4 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:* | 18.4 r2-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:* | 18.4 r2-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:* | 18.4 r2-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r2-s6:*:*:*:*:*:* | 18.4 r2-s6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r2-s7:*:*:*:*:*:* | 18.4 r2-s7 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r2-s8:*:*:*:*:*:* | 18.4 r2-s8 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:* | 18.4 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:* | 18.4 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:* | 18.4 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3-s3:*:*:*:*:*:* | 18.4 r3-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3-s4:*:*:*:*:*:* | 18.4 r3-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3-s5:*:*:*:*:*:* | 18.4 r3-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3-s6:*:*:*:*:*:* | 18.4 r3-s6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3-s7:*:*:*:*:*:* | 18.4 r3-s7 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:18.4:r3-s8:*:*:*:*:*:* | 18.4 r3-s8 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:* | 19.1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:* | 19.1 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:* | 19.1 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:* | 19.1 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:* | 19.1 r1-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:* | 19.1 r1-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:* | 19.1 r1-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r1-s6:*:*:*:*:*:* | 19.1 r1-s6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:* | 19.1 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:* | 19.1 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r2-s2:*:*:*:*:*:* | 19.1 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:* | 19.1 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:* | 19.1 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:* | 19.1 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r3-s3:*:*:*:*:*:* | 19.1 r3-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r3-s4:*:*:*:*:*:* | 19.1 r3-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r3-s5:*:*:*:*:*:* | 19.1 r3-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.1:r3-s6:*:*:*:*:*:* | 19.1 r3-s6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* | 19.2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* | 19.2 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* | 19.2 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* | 19.2 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:* | 19.2 r1-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r1-s4:*:*:*:*:*:* | 19.2 r1-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r1-s5:*:*:*:*:*:* | 19.2 r1-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r1-s6:*:*:*:*:*:* | 19.2 r1-s6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:* | 19.2 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:* | 19.2 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:* | 19.2 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r3-s1:*:*:*:*:*:* | 19.2 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.2:r3-s2:*:*:*:*:*:* | 19.2 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:* | 19.3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:* | 19.3 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:* | 19.3 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:* | 19.3 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:* | 19.3 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:* | 19.3 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:* | 19.3 r2-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:* | 19.3 r2-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:* | 19.3 r2-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r3:*:*:*:*:*:* | 19.3 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r3-s1:*:*:*:*:*:* | 19.3 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.3:r3-s2:*:*:*:*:*:* | 19.3 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* | 19.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* | 19.4 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* | 19.4 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:* | 19.4 r1-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:* | 19.4 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:* | 19.4 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r3-s2:*:*:*:*:*:* | 19.4 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r3-s3:*:*:*:*:*:* | 19.4 r3-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r3-s4:*:*:*:*:*:* | 19.4 r3-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:19.4:r3-s5:*:*:*:*:*:* | 19.4 r3-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* | 20.1 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* | 20.1 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* | 20.1 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* | 20.1 r1-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* | 20.1 r1-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:* | 20.1 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.1:r2-s1:*:*:*:*:*:* | 20.1 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* | 20.2 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* | 20.2 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:* | 20.2 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:* | 20.2 r1-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:* | 20.2 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:* | 20.2 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:* | 20.2 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r2-s3:*:*:*:*:*:* | 20.2 r2-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.2:r3:*:*:*:*:*:* | 20.2 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* | 20.3 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:* | 20.3 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:* | 20.3 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.3:r2-s1:*:*:*:*:*:* | 20.3 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:* | 20.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:* | 20.4 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:* | 20.4 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:* | 20.4 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.1:r1:*:*:*:*:*:* | 21.1 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.1:r1-s1:*:*:*:*:*:* | 21.1 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:h:juniper:ptx1000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ptx10001-36mr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ptx10002:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ptx10003:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ptx10004:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ptx10008:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ptx10016:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ptx3000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ptx5000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
- cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:* Versions 18.4 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:* Versions 18.4 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:* Versions 18.4 r2-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:* Versions 18.4 r2-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:* Versions 18.4 r2-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r2-s6:*:*:*:*:*:* Versions 18.4 r2-s6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r2-s7:*:*:*:*:*:* Versions 18.4 r2-s7 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r2-s8:*:*:*:*:*:* Versions 18.4 r2-s8 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:* Versions 18.4 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:* Versions 18.4 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:* Versions 18.4 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3-s3:*:*:*:*:*:* Versions 18.4 r3-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3-s4:*:*:*:*:*:* Versions 18.4 r3-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3-s5:*:*:*:*:*:* Versions 18.4 r3-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3-s6:*:*:*:*:*:* Versions 18.4 r3-s6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3-s7:*:*:*:*:*:* Versions 18.4 r3-s7 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:18.4:r3-s8:*:*:*:*:*:* Versions 18.4 r3-s8 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:* Versions 19.1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:* Versions 19.1 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:* Versions 19.1 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:* Versions 19.1 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:* Versions 19.1 r1-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:* Versions 19.1 r1-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:* Versions 19.1 r1-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r1-s6:*:*:*:*:*:* Versions 19.1 r1-s6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:* Versions 19.1 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:* Versions 19.1 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r2-s2:*:*:*:*:*:* Versions 19.1 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:* Versions 19.1 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:* Versions 19.1 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:* Versions 19.1 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r3-s3:*:*:*:*:*:* Versions 19.1 r3-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r3-s4:*:*:*:*:*:* Versions 19.1 r3-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r3-s5:*:*:*:*:*:* Versions 19.1 r3-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.1:r3-s6:*:*:*:*:*:* Versions 19.1 r3-s6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* Versions 19.2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* Versions 19.2 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* Versions 19.2 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* Versions 19.2 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:* Versions 19.2 r1-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r1-s4:*:*:*:*:*:* Versions 19.2 r1-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r1-s5:*:*:*:*:*:* Versions 19.2 r1-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r1-s6:*:*:*:*:*:* Versions 19.2 r1-s6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:* Versions 19.2 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:* Versions 19.2 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:* Versions 19.2 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r3-s1:*:*:*:*:*:* Versions 19.2 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.2:r3-s2:*:*:*:*:*:* Versions 19.2 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:* Versions 19.3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:* Versions 19.3 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:* Versions 19.3 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:* Versions 19.3 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:* Versions 19.3 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:* Versions 19.3 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:* Versions 19.3 r2-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:* Versions 19.3 r2-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:* Versions 19.3 r2-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r3:*:*:*:*:*:* Versions 19.3 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r3-s1:*:*:*:*:*:* Versions 19.3 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.3:r3-s2:*:*:*:*:*:* Versions 19.3 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* Versions 19.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* Versions 19.4 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* Versions 19.4 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:* Versions 19.4 r1-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:* Versions 19.4 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:* Versions 19.4 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r3-s2:*:*:*:*:*:* Versions 19.4 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r3-s3:*:*:*:*:*:* Versions 19.4 r3-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r3-s4:*:*:*:*:*:* Versions 19.4 r3-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:19.4:r3-s5:*:*:*:*:*:* Versions 19.4 r3-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* Versions 20.1 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* Versions 20.1 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* Versions 20.1 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* Versions 20.1 r1-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* Versions 20.1 r1-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:* Versions 20.1 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.1:r2-s1:*:*:*:*:*:* Versions 20.1 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* Versions 20.2 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* Versions 20.2 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:* Versions 20.2 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:* Versions 20.2 r1-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:* Versions 20.2 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:* Versions 20.2 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:* Versions 20.2 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r2-s3:*:*:*:*:*:* Versions 20.2 r2-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.2:r3:*:*:*:*:*:* Versions 20.2 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* Versions 20.3 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:* Versions 20.3 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:* Versions 20.3 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.3:r2-s1:*:*:*:*:*:* Versions 20.3 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:* Versions 20.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:* Versions 20.4 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:* Versions 20.4 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:20.4:r2-s1:*:*:*:*:*:* Versions 20.4 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.1:r1:*:*:*:*:*:* Versions 21.1 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.1:r1-s1:*:*:*:*:*:* Versions 21.1 r1-s1 Vulnerable ·Juniper
- cpe:2.3:h:juniper:ptx1000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ptx10001-36mr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ptx10002:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ptx10003:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ptx10004:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ptx10008:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ptx10016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ptx3000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ptx5000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
Remediation
- Fix · CNA Junos OS (Juniper Networks) Fixed in 18.4R3-S9, 19.1R3-S7, 19.2R1-S7, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R1-S4, 19.4R3-S6, 20.1R2-S2, 20.1R3, 20.2R3-S1, 20.3R3, 20.4R3, 21.1R2
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31367
- 2026-10-03 Alias added: GHSA-xgc5-8p66-2hp3
References
More Juniper Junos vulnerabilities
- TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
- TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
- TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
- TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
- TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
Sources
- CVE-2021-31367 · CVE Program
- CVE-2021-31367 · NVD
- FIRST EPSS
- GHSA-xgc5-8p66-2hp3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences