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Vulnerabilities CVE-2026-41643

CVE-2026-41643

High
Open
TLP:CLEAR
NVD CVE.org
Critical Infrastructure DDoS

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Description

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.3.0, a remote Denial of Service (DoS) vulnerability exists in GoBGP where a malformed BGP UPDATE message can trigger a runtime error: index out of range panic. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. This issue has been patched in version 4.3.0.

Details

CVSS Score
7.5
EPSS Score
0.54%

42.8th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Confidence
90%
Published
May 7, 2026
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