CVE-2026-7736
GoBGP has an Integer Underflow Issue in github.com/osrg/gobgp
7.3
HIGH
CVSS 3.1
EPSS 0.45%
Description
A vulnerability was determined in osrg GoBGP up to 4.3.0. Affected by this vulnerability is the function parseRibEntry of the file pkg/packet/mrt/mrt.go. Executing a manipulation can lead to integer underflow. It is possible to launch the attack remotely. Upgrading to version 4.4.0 addresses this issue. This patch is called 76d911046344a3923cbe573364197aa081944592. It is suggested to upgrade the affected component.
How to fix CVE-2026-7736
To remediate CVE-2026-7736, upgrade the affected package to a fixed version below.
- —upgrade to 4.4.0 or later
- —upgrade to 4.4.0 or later
Is CVE-2026-7736 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.4.0
- from 0, < 4.4.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |