Is there a public exploit for CVE-2026-121294?

No public exploit for CVE-2026-121294 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-121294?

CVE-2026-121294 scores CVSS 6.9 (v4.0), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.4%.

What does CVE-2026-121294 affect?

CVE-2026-121294 affects Arista Networks EOS.

6.9 Medium

On affected platforms running Arista EOS with a S-BFD reflector proxy configured, an unauthenticated attacker could send a crafted S-BFD…

CVE-2026-121294

On affected platforms running Arista EOS with a S-BFD reflector proxy configured, an unauthenticated attacker could send a crafted S-BFD Protocol Data Unit (PDU) that might cause the device to temporarily cease reflecting S-BFD packets, potentially resulting in S-BFD session timeouts.

Assessment

CVSS: 6.9 (v4.0)
Severity: Medium
EPSS: 0.4% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 10 November 2026
Last updated: 13 November 2026
Affected: Arista Networks · EOS
Assigner: Arista

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

https://www.arista.com/en/support/advisories-notices/security-advisory/25045-security-advisory-0223

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