CVE-2026-73469 — MEDIUM (5.8)

Vulnerability Description

When specific platforms are using Arista EOS with a loose Unicast Reverse Path Forwarding (uRPF) configuration, certain traffic may not be subjected to the intended verification drop. Consequently, traffic that should be dropped based on these routes could still be processed and forwarded by the device. This issue was discovered internally by Arista and the company is not aware of any malicious uses of this issue in customer networks.

CVSS Score

5.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-863

References

https://www.arista.com/en/support/advisories-notices/security-advisory/24732-sec

FAQ

What is CVE-2026-73469?

CVE-2026-73469 is a vulnerability with a CVSS score of 5.8 (MEDIUM). When specific platforms are using Arista EOS with a loose Unicast Reverse Path Forwarding (uRPF) configuration, certain traffic may not be subjected to the intended verification drop. Consequently, tr...

How severe is CVE-2026-73469?

CVE-2026-73469 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-73469?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.