7.1

CVE-2025-8872: arista networks eos Uncontrolled Resource Consumption

CVSS: 7.1v4.0HighDeferred
Published 16-12-2025Last modified 16-12-2025
Open JSON

Vulnerability summary

CVE-2025-8872 is a high (CVSS 7.1) Uncontrolled Resource Consumption vulnerability in arista networks eos. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.4% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v4.0 (CVE.org)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-12-2025
    PublishedVulnerability first disclosed.
  2. 16-12-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

0.00 pp

From 0.30% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Arista networks1 product
  • eos≥ 4.34.0, ≤ 4.34.1F | ≥ 4.33.0, ≤ 4.33.4M | ≥ 4.32.0, ≤ 4.32.7M | ≥ 4.31.0, ≤ 4.31.8M | ≤ 4.31.0

1 vendor · 1 product

References

1 links