Missing authentication in Arista EOS
Priority LOW 31CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
Affected platforms running Arista EOS with OpenConfig configured, a gNMI Set request can be run when it should have been rejected. This can result in unexpected configuration being applied to the switch.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00302 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| Arista | EOS | 4.31.0 – 4.31.2F; 4.30.0 – 4.30.5M; 4.29.0 – 4.29.7M; 4.28.0 – 4.28.10M; 4.27.0 – 4.27.8M; 4.26.0 – 4.26.9M; 4.25.0 – 4.25.10M; 4.24.0 – 4.24.11M | — | No fix listed | CNA |
- EOS VendorArista Affected 4.31.0 – 4.31.2F; 4.30.0 – 4.30.5M; 4.29.0 – 4.29.7M; 4.28.0 – 4.28.10M; 4.27.0 – 4.27.8M; 4.26.0 – 4.26.9M; 4.25.0 – 4.25.10M; 4.24.0 – 4.24.11M Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-27892
- 2026-10-03 Alias added: GHSA-r3vx-23r2-44c7
References
More Arista vulnerabilities
- TI-2026-79524 Privilege escalation in Arista VeloCloud Orchestrator on-premises KEVCVSS 4.0CRITICAL 9.4
- TI-2026-63212 Improper input validation in Arista VeloCloud Orchestrator On-Prem KEVCVSS 4.0CRITICAL 9.5
- TI-2026-13992 VeloCloud Orchestrator OS Command Injection KEVCVSS 4.0CRITICAL 10.0
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-23989 crypto: algif_aead - Revert to operating out-of-place KEVCVSS 3.1HIGH 7.8
Sources
- CVE-2024-27892 · CVE Program
- CVE-2024-27892 · NVD
- FIRST EPSS
- GHSA-r3vx-23r2-44c7 · GitHub Advisory Database · CC BY 4.0
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