Is CVE-2026-5124 actively exploited?

CVE-2026-5124 has no public evidence of in-the-wild exploitation as of 2026-04-06.

What is the CVSS score for CVE-2026-5124?

CVE-2026-5124 has a CVSS score of 6.3 (MEDIUM severity). Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2026-5124?

Patch guidance is available from osrg security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-5124.

CVE-2026-5124 - remediation guidance & executive summary

Description

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.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-266 CWE-284

Metadata

Primary Vendor: OSRG
Published: 3/30/2026
Last Modified: 4/6/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

osrg : gobgp

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-5124. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-5124

View on NIST NVD

CVE-2026-5124 vulnerability