CVE-2025-43971: GoBGP panics due to a zero value for softwareVersionLen

April 21, 2025 (updated March 12, 2026)

An issue was discovered in GoBGP before 3.35.0 (introduced in v3.11.0). pkg/packet/bgp/bgp.go allows attackers to cause a panic via a zero value for softwareVersionLen.

References

github.com/advisories/GHSA-7m35-vw2c-696v
github.com/osrg/gobgp
github.com/osrg/gobgp/commit/08a001e06d90e8bcc190084c66992f46f62c0986
github.com/osrg/gobgp/compare/v3.34.0...v3.35.0
nvd.nist.gov/vuln/detail/CVE-2025-43971
security-tracker.debian.org/tracker/CVE-2025-43971

Code Behaviors & Features

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