CVE-2026-121286
Received Received - Intake

BGP Process Restart in Arista EOS via SR-TE Crafted Packets

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: Arista Networks, Inc.

Description
On affected platforms running Arista EOS in multi-agent routing model with BGP Segment Routing Traffic Engineering (SR-TE) address family configured, a BGP peer can send crafted BGP packets to cause the BGP process to restart, disrupting all BGP sessions on the device.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-121286
EUVD
EUVD-2026-122807

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
arista arista_eos *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.

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