Home / Vulnerability Intelligence / CVE-2026-41642

CVE-2026-41642 - Vulnerability Analysis

HighCVSS: 7.5

Last Updated: May 7, 2026

GoBGP - Denial of Service

Published: May 7, 2026Updated: May 7, 2026PoC AvailableRemote Exploitable

Overview

GoBGP 4.3.0 contains a denial of service caused by a nil pointer dereference when handling malformed BGP UPDATE messages with unrecognized Well-known Path Attributes, letting remote attackers crash the process, exploit requires sending crafted BGP UPDATE messages.

Severity & Score

Severity: High

CVSS Score: 7.5

Impact

Remote attackers can crash the GoBGP process causing denial of service.

Mitigation

Upgrade to version 4.4.0 or later.

References

https://github.com/osrg/gobgp/releases/tag/v4.4.0
https://github.com/osrg/gobgp/security/advisories/GHSA-7235-89m6-f4px

Related Resources

Vulnerability Intelligence Dashboard
Credential Scanner

Details

CVE ID: CVE-2026-41642
Severity: High
CVSS Score: 7.5
Type: null_pointer_dereference
Status: confirmed

CWE

CWE-476

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H