Code injection in Arista EOS
Priority MEDIUM 41CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
On affected platforms running Arista EOS with gRPC Network Management Interface (gNMI) enabled, a specially crafted request could allow a malicious authenticated client with gRPC Network Management Interface (gNMI) access to execute arbitrary code with root privileges on the switch.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00638 50th 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
- Total
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 | 4.29.0F to before 4.30.0F; 4.30.0F to before 4.31.0F; 4.31.0F to before 4.32.0F; 4.32.0F to before 4.33.0F; 4.33.0F – 4.33.8M; 4.34.0F – 4.34.7M; 4.35.0F – 4.35.5M; 4.36.0F – 4.36.0.1F | — | No fix listed | CNA |
- EOS VendorArista Affected 4.29.0F to before 4.30.0F; 4.30.0F to before 4.31.0F; 4.31.0F to before 4.32.0F; 4.32.0F to before 4.33.0F; 4.33.0F – 4.33.8M; 4.34.0F – 4.34.7M; 4.35.0F – 4.35.5M; 4.36.0F – 4.36.0.1F Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-73464
- 2026-10-03 Alias added: GHSA-hpwc-p8j3-f332
- 2026-10-24 EPSS moved to the 50th–90th percentile
References
Advisory 1
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-2026-73464 · CVE Program
- CVE-2026-73464 · NVD
- FIRST EPSS
- GHSA-hpwc-p8j3-f332 · GitHub Advisory Database · CC BY 4.0
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