CVE-2026-5122

Summary

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.

Affected Software

VendorProductVersion RangeStatus
osrgGoBGP4.0affected
osrgGoBGP4.1affected
osrgGoBGP4.2affected
osrgGoBGP4.3.0affected

Weaknesses

  • CWE-284: Improper Access Controls
  • CWE-266: Incorrect Privilege Assignment

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References