CVE-2025-8872

mediumpriority · track · 0EPSS 0.003 · 23 %ileDEEU

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.30% (23rd) EPSS

CVSS 6.5 · medium

Is it mine?

13 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.1

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · psirt@arista.comexploitability 2.8 · impact 3.6

v4.07.1highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.07.1highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · psirt@arista.com

v4.04.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400US

affected products (13)

Products and version ranges known to be affected.

Arista EOS <4.31.9Mall versionscert_bundDE
Arista EOS <4.32.8Mall versionscert_bundDE
Arista EOS <4.33.5Mall versionscert_bundDE
Arista EOS <4.34.2Fall versionscert_bundDE
Arista EOS< 4.31.9Mcert_bundDE
Arista EOS< 4.32.8Mcert_bundDE
Arista EOS< 4.33.5Mcert_bundDE
Arista EOS< 4.34.2Fcert_bundDE
Arista Networks EOS≤ 4.32.0 ≤4.32.7Menisa_euvdEU
Arista Networks EOS≤ 4.34.0 ≤4.34.1Fenisa_euvdEU
Arista Networks EOS≤ 0 ≤4.31.0enisa_euvdEU
Arista Networks EOS≤ 4.31.0 ≤4.31.8Menisa_euvdEU
Arista Networks EOS≤ 4.33.0 ≤4.33.4Menisa_euvdEU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2863Arista EOS: Schwachstelle ermöglicht Denial of ServiceDeutsch2025-12-16csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Arista EOS ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2025-12-16modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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