Is CVE-2026-5122 actively exploited?

No active exploitation of CVE-2026-5122 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-5122 be exploited remotely?

Yes. CVE-2026-5122 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-5122?

CVE-2026-5122 has a CVSS score of 3.7 (LOW).

HOME VULNERABILITIESCVE-2026-5122

LOW

CVE-2026-5122

CWE-266Published: March 30, 2026· Updated: Apr 1, 2026

3.7

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:9.6th

Official Description

A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is reported as difficult. The patch is named 2b09db390a3d455808363c53e409afe6b1b86d2d. It is suggested to install a patch to address this issue.

NVD Source

Technical Analysis

CVE-2026-5122 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.