How severe is CVE-2024-6437?

CVE-2024-6437 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2024-6437 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-6437?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-6437 have an EU (EUVD) identifier?

Yes. CVE-2024-6437 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48006.

When was CVE-2024-6437 published?

CVE-2024-6437 was published on 2025-01-10 and last updated on 2026-06-17.

CVE-2024-6437

CVE-2024-6437 is a medium-severity vulnerability with a CVSS 3.x base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-48006
Published: 2025-01-10
Last modified: 2026-06-17

Description

On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options may bypass the feature's set nexthop action and be slow-path forwarded (FIB routed) by the kernel as the packets are trapped to the CPU instead of following the redirect action's destination.

Frequently asked questions

What is CVE-2024-6437?: On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options may bypass the feature's set nexthop action and be slow-path forwarded (FIB routed) by the kernel as the packets are trapped to the CPU instead of following the redirect action's destination.
How severe is CVE-2024-6437?: CVE-2024-6437 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2024-6437 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-6437?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-6437 have an EU (EUVD) identifier?: Yes. CVE-2024-6437 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48006.
When was CVE-2024-6437 published?: CVE-2024-6437 was published on 2025-01-10 and last updated on 2026-06-17.

References

https://www.arista.com/en/support/advisories-notices/security-advisory/20689-security-advisory-0108