CVE-2026-37461
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductOsrg Gobgp
PublishedMay 4, 2026
First seenMay 4, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- github.com/osrg/gobgp/v44.4.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| osrg gobgp | 4.3.0 | — |
| github.com/osrg/gobgp/v4Go | v < 4.4.0 | 4.4.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.