How severe is CVE-2025-8872?

CVE-2025-8872 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-8872 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-8872?

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

Does CVE-2025-8872 have an EU (EUVD) identifier?

Yes. CVE-2025-8872 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203841.

When was CVE-2025-8872 published?

CVE-2025-8872 was published on 2025-12-16 and last updated on 2026-06-17.

CVE-2025-8872

CVE-2025-8872 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203841
Weakness: CWE-400
Published: 2025-12-16
Last modified: 2026-06-17

Description

On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted. This may cause disruption in the OSFPv3 routes on the switch. This issue was discovered internally by Arista and is not aware of any malicious uses of this issue in customer networks.

Frequently asked questions

What is CVE-2025-8872?: On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted. This may cause disruption in the OSFPv3 routes on the switch. This issue was discovered internally by Arista and is not aware of any malicious uses of this issue in customer networks.
How severe is CVE-2025-8872?: CVE-2025-8872 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-8872 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-8872?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-8872 have an EU (EUVD) identifier?: Yes. CVE-2025-8872 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203841.
When was CVE-2025-8872 published?: CVE-2025-8872 was published on 2025-12-16 and last updated on 2026-06-17.

References

https://www.arista.com/en/support/advisories-notices/security-advisory/23115-security-advisory-0128

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