High 7.5Published May 3, 2026

CVE-2026-37461An 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.

Updated under an hour ago (Oct 27, 2026, 4:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for osrg gobgp

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mitre
NVD analysis: Analyzed
Record last updated: May 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

osrg gobgp osrg:gobgp	4.3.0	NVD

References

References

https://github.com/osrg/gobgp/blob/v4.3.0/pkg/packet/bgp/bgp.go	product
https://github.com/osrg/gobgp/commit/362cce3e325f56e7a4f792ccb9689b3bdda9e682	patch
https://github.com/osrg/gobgp/commit/9ce8936672ebc07df524da77fa4c6ae26d92be6d	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.