CVE-2026-37462

7.5 highEPSS 0.3%

High (7.5). EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/osrg/gobgp/v4 4.4.0.

An integer underflow in the BGPUpdate.DecodeFromBytes 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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE: CWE-190
Published: 2026-06-03
Modified: 2026-07-22
Record from: the NVD, synced 2026-10-19

Packages (OSV)

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-pw7p-7fqv-hpj8	Go	github.com/osrg/gobgp/v4	<4.4.0	4.4.0
GO-2026-5971	Go	github.com/osrg/gobgp/v4	<4.4.0	4.4.0

References

https://github.com/osrg/gobgp/blob/v4.3.0/pkg/packet/bgp/bgp.go
https://github.com/osrg/gobgp/commit/9ce8936672ebc07df524da77fa4c6ae26d92be6d

Check your stack JSON