Vulnerability · Published May 4, 2026 · Assigned by mitre
CVE-2026-37461
High 7.5
In plain English
A high-severity out-of-bounds read in the gobgp package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 73.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An out-of-bounds read in the ParseIP6Extended function (/bgp/bgp.go) of gobgp v4.3.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | gobgp | no fix listed | DEBIAN-CVE-2026-37461 |
| Debian:13 | gobgp | no fix listed | DEBIAN-CVE-2026-37461 |
| Debian:14 | gobgp | 4.4.0-1 | DEBIAN-CVE-2026-37461 |
| Go | github.com/osrg/gobgp/v4 | 4.4.0 | GHSA-wmvj-f67g-qg4g |
| Go | github.com/osrg/gobgp/v4 | 4.4.0 | GO-2026-5713 |
| Ubuntu:25.10 | gobgp | no fix listed | UBUNTU-CVE-2026-37461 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H