EUVD-2026-17139CVSS 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
Lifecycle Timeline
4Description
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.
Analysis
Improper access controls in osrg GoBGP up to version 4.3.0 allow remote attackers to bypass authentication via manipulation of the BGP Header Handler's DecodeFromBytes function. The vulnerability affects the BGP packet parsing mechanism and enables unauthorized modifications to BGP protocol state without requiring authentication. …
Sign in for full analysis, threat intelligence, and remediation guidance.
Priority Score
Vendor Status
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 2.25.0-2 | - |
| bookworm | vulnerable | 3.10.0-1 | - |
| trixie | vulnerable | 3.36.0-2 | - |
| forky, sid | vulnerable | 4.3.0-1 | - |
| (unstable) | fixed | (unfixed) | - |
Share
External POC / Exploit Code
Leaving vuln.today