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TI-2020-01602 Aliases CVE-2020-1651GHSA-x7q7-3cr3-m2q3

Junos OS: MX Series: PFE on the line card may crash due to memory leak.

Priority LOW 29CWE-19Published · 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

On Juniper Networks MX series, receipt of a stream of specific Layer 2 frames may cause a memory leak resulting in the packet forwarding engine (PFE) on the line card to crash and restart, causing traffic interruption. By continuously sending this stream of specific layer 2 frame, an attacker connected to the same broadcast domain can repeatedly crash the PFE, causing a prolonged Denial of Service (DoS). This issue affects Juniper Networks Junos OS on MX Series: 17.2 versions prior to 17.2R3-S4; 17.2X75 versions prior to 17.2X75-D105.19; 17.3 versions prior to 17.3R3-S7; 17.4 versions prior to 17.4R1-S3, 17.4R2; 18.1 versions prior to 18.1R2. This issue does not affect Juniper Networks Junos OS releases prior to 17.2R1.

Why it matters now

EPSS 0.00453 39th percentileScored 2026-11-07
Fix Fixed Junos OS (Juniper Networks): 17.2R3-S4, 17.2X75-D105.19, 17.3R3-S7 +3

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JuniperJunos OS17.2 to before 17.2R3-S4; 17.2X75 to before 17.2X75-D105.19; 17.3 to before 17.3R3-S7; 17.4 to before 17.4R1-S3, 17.4R2; 18.1 to before 18.1R217.2R3-S4, 17.2X75-D105.19, 17.3R3-S7, 17.4R1-S3, 17.4R2, 18.1R2Patch availableCNA
  • Junos OS VendorJuniper Affected 17.2 to before 17.2R3-S4; 17.2X75 to before 17.2X75-D105.19; 17.3 to before 17.3R3-S7; 17.4 to before 17.4R1-S3, 17.4R2; 18.1 to before 18.1R2 Fixed in 17.2R3-S4, 17.2X75-D105.19, 17.3R3-S7, 17.4R1-S3, 17.4R2, 18.1R2 Patch available CNA

CPE configurations NVD · 54

CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:17.2:-:*:*:*:*:*:*17.2VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:*17.2 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1-s1:*:*:*:*:*:*17.2 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:*17.2 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1-s3:*:*:*:*:*:*17.2 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:*17.2 r1-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1-s5:*:*:*:*:*:*17.2 r1-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1-s7:*:*:*:*:*:*17.2 r1-s7VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r1-s8:*:*:*:*:*:*17.2 r1-s8VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r2:*:*:*:*:*:*17.2 r2VulnerableJuniper
  • cpe:2.3:o:juniper:junos:17.2:-:*:*:*:*:*:* Versions 17.2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:* Versions 17.2 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1-s1:*:*:*:*:*:* Versions 17.2 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:* Versions 17.2 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1-s3:*:*:*:*:*:* Versions 17.2 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:* Versions 17.2 r1-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1-s5:*:*:*:*:*:* Versions 17.2 r1-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1-s7:*:*:*:*:*:* Versions 17.2 r1-s7 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r1-s8:*:*:*:*:*:* Versions 17.2 r1-s8 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r2:*:*:*:*:*:* Versions 17.2 r2 Vulnerable ·Juniper
Show 44 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:17.2:r2-s11:*:*:*:*:*:*17.2 r2-s11VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r2-s6:*:*:*:*:*:*17.2 r2-s6VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r2-s7:*:*:*:*:*:*17.2 r2-s7VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r3-s1:*:*:*:*:*:*17.2 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r3-s2:*:*:*:*:*:*17.2 r3-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2:r3-s3:*:*:*:*:*:*17.2 r3-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2x75:-:*:*:*:*:*:*17.2x75VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2x75:d102:*:*:*:*:*:*17.2x75 d102VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2x75:d50:*:*:*:*:*:*17.2x75 d50VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2x75:d70:*:*:*:*:*:*17.2x75 d70VulnerableJuniper
cpe:2.3:o:juniper:junos:17.2x75:d92:*:*:*:*:*:*17.2x75 d92VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:*17.3VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r1-s1:*:*:*:*:*:*17.3 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:*17.3 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:*17.3 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:*17.3 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r2-s3:*:*:*:*:*:*17.3 r2-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r2-s4:*:*:*:*:*:*17.3 r2-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r3:-:*:*:*:*:*17.3 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:*17.3 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:*17.3 r3-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r3-s3:*:*:*:*:*:*17.3 r3-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:17.3:r3-s4:*:*:*:*:*:*17.3 r3-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:*17.4VulnerableJuniper
cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*17.4 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:*17.4 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:*17.4 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*18.1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*18.1 r1VulnerableJuniper
cpe:2.3:h:juniper:mx10:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx10000:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx104:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx150:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx204:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx40:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx5:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx80:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:*not specified by NVDRunning onJuniper
  • cpe:2.3:o:juniper:junos:17.2:r2-s11:*:*:*:*:*:* Versions 17.2 r2-s11 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r2-s6:*:*:*:*:*:* Versions 17.2 r2-s6 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r2-s7:*:*:*:*:*:* Versions 17.2 r2-s7 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r3-s1:*:*:*:*:*:* Versions 17.2 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r3-s2:*:*:*:*:*:* Versions 17.2 r3-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2:r3-s3:*:*:*:*:*:* Versions 17.2 r3-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2x75:-:*:*:*:*:*:* Versions 17.2x75 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2x75:d102:*:*:*:*:*:* Versions 17.2x75 d102 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2x75:d50:*:*:*:*:*:* Versions 17.2x75 d50 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2x75:d70:*:*:*:*:*:* Versions 17.2x75 d70 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.2x75:d92:*:*:*:*:*:* Versions 17.2x75 d92 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:* Versions 17.3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r1-s1:*:*:*:*:*:* Versions 17.3 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:* Versions 17.3 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:* Versions 17.3 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:* Versions 17.3 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r2-s3:*:*:*:*:*:* Versions 17.3 r2-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r2-s4:*:*:*:*:*:* Versions 17.3 r2-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r3:-:*:*:*:*:* Versions 17.3 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:* Versions 17.3 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:* Versions 17.3 r3-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r3-s3:*:*:*:*:*:* Versions 17.3 r3-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.3:r3-s4:*:*:*:*:*:* Versions 17.3 r3-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:* Versions 17.4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:* Versions 17.4 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:* Versions 17.4 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:* Versions 17.4 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:* Versions 18.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:* Versions 18.1 r1 Vulnerable ·Juniper
  • cpe:2.3:h:juniper:mx10:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx10000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx10003:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx104:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx150:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx2008:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx2010:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx2020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx204:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx40:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx5:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx80:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
  • cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper

Remediation

  • Fix · CNA Junos OS (Juniper Networks) Fixed in 17.2R3-S4, 17.2X75-D105.19, 17.3R3-S7, 17.4R1-S3, 17.4R2, 18.1R2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-1651
  2. 2026-10-03 Alias added: GHSA-x7q7-3cr3-m2q3

References

Advisory 1

  • 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
See all 792 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences