On affected platforms running Arista EOS with VPLS-BGP enabled, an attacker who has established a BGP session with the PE routers can send a specially crafted BGP packet to cause the BGP agent to restart unexpectedly.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact Low

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Arista Networks EOS unaffected
Version Status Constraints
4.33.0F affected ≤ 4.33.10M
4.34.0F affected ≤ 4.34.8M
4.35.0F affected ≤ 4.35.6M
4.36.0F affected ≤ 4.36.2F

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.arista.com/en/support/advisories-notices/security-advisory/25036-security-advisory-0214 cve-icon cve-icon
History

Tue, 10 Nov 2026 20:15:00 +0000

Type Values Removed Values Added
Description On affected platforms running Arista EOS with VPLS-BGP enabled, an attacker who has established a BGP session with the PE routers can send a specially crafted BGP packet to cause the BGP agent to restart unexpectedly.
Title Security Advisory 0214
Weaknesses CWE-617
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Arista

Published:

Updated: 2026-11-10T20:09:53.555Z

Reserved: 2026-11-03T05:14:06.127Z

Link: CVE-2026-120980

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-10T20:18:53.217

Modified: 2026-11-10T20:18:53.217

Link: CVE-2026-120980

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses