CVE-2026-5124

low-risk
Published 2026-03-30

A security vulnerability has been detected in osrg GoBGP up to 4.3.0. Affected is the function BGPHeader.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP Header Handler. The manipulation leads to improper access controls. Remote exploitation of the attack is possible. The attack is considered to have high complexity. The exploitability is told to be difficult. The identifier of the patch is f0f24a2a901cbf159260698211ab15c583ced131. To fix this issue, it is recommended to deploy a patch.

Do I need to act?

-
0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.7/10 Low
NETWORK / HIGH complexity

Affected Products (1)

Gobgp

Affected Vendors

Osrg

References (6)

Product https://github.com/osrg/gobgp/
Patch https://github.com/osrg/gobgp/commit/f0f24a2a901cbf159260698211ab15c583ced131
Issue Tracking https://github.com/osrg/gobgp/pull/3340
Third Party Advisory https://vuldb.com/submit/780189
Third Party Advisory https://vuldb.com/vuln/354156
Permissions Required https://vuldb.com/vuln/354156/cti
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal