Vulnerability · Published Apr 21, 2025 · Assigned by mitre
CVE-2025-43972
Medium 6.8
In plain English
A medium-severity security flaw in GoBGP from GoBGP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.6%top 53.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue was discovered in GoBGP before 3.35.0. An attacker can cause a crash in the pkg/packet/bgp/bgp.go flowspec parser by sending fewer than 20 bytes in a certain context.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | gobgp | no fix listed | DEBIAN-CVE-2025-43972 |
| Debian:13 | gobgp | 3.35.0-1 | DEBIAN-CVE-2025-43972 |
| Debian:14 | gobgp | 3.35.0-1 | DEBIAN-CVE-2025-43972 |
| Go | github.com/osrg/gobgp | no fix listed | GO-2025-3632 |
| Go | github.com/osrg/gobgp | no fix listed | GHSA-mfvv-mgf6-q25r |
| Go | github.com/osrg/gobgp/v3 | 3.35.0 | GO-2025-3632 |
| Go | github.com/osrg/gobgp/v3 | 3.35.0 | GHSA-mfvv-mgf6-q25r |
Affected products (as reported)
Weakness: CWE-1284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H