Junos OS: Due to a race condition AgentD process causes a memory corruption and FPC reset
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in the AgentD process of Juniper Networks Junos OS allows an attacker who is already causing impact to established sessions which generates counter changes picked up by the AgentD process during telemetry polling, to move the AgentD process into a state where AgentD attempts to reap an already destroyed sensor. This reaping attempt then leads to memory corruption causing the FPC to crash which is a Denial of Service (DoS). The FPC will recover automatically without user intervention after the crash. This issue affects Junos OS: * All versions before 21.4R3-S9 * From 22.2 before 22.2R3-S5, * From 22.3 before 22.3R3-S4, * From 22.4 before 22.4R3-S3, * From 23.2 before 23.2R2-S2, * From 23.4 before 23.4R2. This issue does not affect Junos OS Evolved.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Juniper | Junos OS | before 21.4R3-S9; 22.2 to before 22.2R3-S5; 22.3 to before 22.3R3-S4; 22.4 to before 22.4R3-S3; 23.2 to before 23.2R2-S2; 23.4 to before 23.4R2 | 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S3, 23.2R2-S2, 23.4R2 | Patch available | CNA |
- Junos OS VendorJuniper Affected before 21.4R3-S9; 22.2 to before 22.2R3-S5; 22.3 to before 22.3R3-S4; 22.4 to before 22.4R3-S3; 23.2 to before 23.2R2-S2; 23.4 to before 23.4R2 Fixed in 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S3, 23.2R2-S2, 23.4R2 Patch available CNA
CPE configurations NVD · 60
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* | before 21.4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:* | 21.4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:* | 21.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:* | 21.4 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:* | 21.4 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:* | 21.4 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:* | 21.4 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:* | 21.4 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:* | 21.4 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:* | 21.4 r3-s1 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* Versions before 21.4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:* Versions 21.4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:* Versions 21.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:* Versions 21.4 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:* Versions 21.4 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:* Versions 21.4 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:* Versions 21.4 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:* Versions 21.4 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:* Versions 21.4 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:* Versions 21.4 r3-s1 Vulnerable ·Juniper
Show 50 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:* | 21.4 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:* | 21.4 r3-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:* | 21.4 r3-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r3-s5:*:*:*:*:*:* | 21.4 r3-s5 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r3-s6:*:*:*:*:*:* | 21.4 r3-s6 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r3-s7:*:*:*:*:*:* | 21.4 r3-s7 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:21.4:r3-s8:*:*:*:*:*:* | 21.4 r3-s8 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:* | 22.2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:* | 22.2 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:* | 22.2 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:* | 22.2 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:* | 22.2 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:* | 22.2 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:* | 22.2 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:* | 22.2 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:* | 22.2 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:* | 22.2 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r3-s3:*:*:*:*:*:* | 22.2 r3-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.2:r3-s4:*:*:*:*:*:* | 22.2 r3-s4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:-:*:*:*:*:*:* | 22.3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r1:*:*:*:*:*:* | 22.3 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r1-s1:*:*:*:*:*:* | 22.3 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r1-s2:*:*:*:*:*:* | 22.3 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r2:*:*:*:*:*:* | 22.3 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r2-s1:*:*:*:*:*:* | 22.3 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r2-s2:*:*:*:*:*:* | 22.3 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r3:*:*:*:*:*:* | 22.3 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r3-s1:*:*:*:*:*:* | 22.3 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r3-s2:*:*:*:*:*:* | 22.3 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.3:r3-s3:*:*:*:*:*:* | 22.3 r3-s3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:* | 22.4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:* | 22.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:* | 22.4 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:* | 22.4 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:* | 22.4 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:* | 22.4 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:* | 22.4 r2-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:* | 22.4 r3 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r3-s1:*:*:*:*:*:* | 22.4 r3-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:22.4:r3-s2:*:*:*:*:*:* | 22.4 r3-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:* | 23.2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:* | 23.2 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:* | 23.2 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:* | 23.2 r1-s2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:* | 23.2 r2 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:* | 23.2 r2-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:* | 23.4 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:* | 23.4 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:* | 23.4 r1-s1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:* | 23.4 r1-s2 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:* Versions 21.4 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:* Versions 21.4 r3-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:* Versions 21.4 r3-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r3-s5:*:*:*:*:*:* Versions 21.4 r3-s5 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r3-s6:*:*:*:*:*:* Versions 21.4 r3-s6 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r3-s7:*:*:*:*:*:* Versions 21.4 r3-s7 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:21.4:r3-s8:*:*:*:*:*:* Versions 21.4 r3-s8 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:* Versions 22.2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:* Versions 22.2 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:* Versions 22.2 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:* Versions 22.2 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:* Versions 22.2 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:* Versions 22.2 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:* Versions 22.2 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:* Versions 22.2 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:* Versions 22.2 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:* Versions 22.2 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r3-s3:*:*:*:*:*:* Versions 22.2 r3-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.2:r3-s4:*:*:*:*:*:* Versions 22.2 r3-s4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:-:*:*:*:*:*:* Versions 22.3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r1:*:*:*:*:*:* Versions 22.3 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r1-s1:*:*:*:*:*:* Versions 22.3 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r1-s2:*:*:*:*:*:* Versions 22.3 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r2:*:*:*:*:*:* Versions 22.3 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r2-s1:*:*:*:*:*:* Versions 22.3 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r2-s2:*:*:*:*:*:* Versions 22.3 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r3:*:*:*:*:*:* Versions 22.3 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r3-s1:*:*:*:*:*:* Versions 22.3 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r3-s2:*:*:*:*:*:* Versions 22.3 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.3:r3-s3:*:*:*:*:*:* Versions 22.3 r3-s3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:* Versions 22.4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:* Versions 22.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:* Versions 22.4 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:* Versions 22.4 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:* Versions 22.4 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:* Versions 22.4 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:* Versions 22.4 r2-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:* Versions 22.4 r3 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r3-s1:*:*:*:*:*:* Versions 22.4 r3-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:22.4:r3-s2:*:*:*:*:*:* Versions 22.4 r3-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:* Versions 23.2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:* Versions 23.2 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:* Versions 23.2 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:* Versions 23.2 r1-s2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:* Versions 23.2 r2 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:* Versions 23.2 r2-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:* Versions 23.4 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:* Versions 23.4 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:* Versions 23.4 r1-s1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:* Versions 23.4 r1-s2 Vulnerable ·Juniper
Remediation
- Fix · CNA Junos OS (Juniper Networks) Fixed in 21.4R3-S9, 22.2R3-S5, 22.3R3-S4, 22.4R3-S3, 23.2R2-S2, 23.4R2
Timeline
- 2026-10-02 Threatist record created from CVE-2024-47494
- 2026-10-03 Alias added: GHSA-f3wp-gx52-q6g2
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-2024-47494 · CVE Program
- CVE-2024-47494 · NVD
- FIRST EPSS
- GHSA-f3wp-gx52-q6g2 · 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