Description
On affected platforms running Arista EOS configured as S-BFD peers, an unauthenticated attacker could send a crafted S-BFD PDU to an initiator device. This crafted PDU could cause the kernel on the initiator device to crash, resulting in an unexpected device reboot.
Published: 2026-11-10
Score: 9.2 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

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

Type Values Removed Values Added
Description On affected platforms running Arista EOS configured as S-BFD peers, an unauthenticated attacker could send a crafted S-BFD PDU to an initiator device. This crafted PDU could cause the kernel on the initiator device to crash, resulting in an unexpected device reboot.
Title Security Advisory 0223
Weaknesses CWE-1284
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'}

cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: Arista

Published:

Updated: 2026-11-10T20:09:59.572Z

Reserved: 2026-11-03T11:21:01.892Z

Link: CVE-2026-121295

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-10T20:18:55.750

Modified: 2026-11-10T20:18:55.750

Link: CVE-2026-121295

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-1284

    Improper Validation of Specified Quantity in Input