On affected EOS platforms with AAA-based gRPC authorization enabled for OpenConfig, gRPC…
Priority MEDIUM 43CWE-266Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Privilege escalation
- 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-266.
Summary
On affected EOS platforms with AAA-based gRPC authorization enabled for OpenConfig, gRPC requests of an authenticated user to OpenConfig may use the wrong privilege level, resulting in an authorization using the wrong AAA method list. This does not impact non-gRPC OpenConfig requests such as NETCONF.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00394 33rd 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 – 4.32.11M; 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 – 4.32.11M; 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-2026-73461
- 2026-10-03 Alias added: GHSA-cppj-w9qw-f23c
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-2026-73461 · CVE Program
- CVE-2026-73461 · NVD
- FIRST EPSS
- GHSA-cppj-w9qw-f23c · 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