Vulnerability in Osrg Gobgp
CVE-2026-7734
A vulnerability has been found in osrg GoBGP up to 4.3.0. This impacts the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. Such manipulation of the argument data leads to denial of service. The attack may be performed from remote. Upgrading to version 4.4.0 will fix this issue. The name of the patch is f9f7b55ec258e514be0264871fa645a2c3edad11. You should upgrade the affected component.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (40.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.005 · change: -0.004
Affected products
- Osrg Gobgp — versions 4.0, 4.1, 4.2
Weakness classification (CWE)
References
- github.com/osrg/gobgp/ (Product, product)
- github.com/osrg/gobgp/commit/f9f7b55ec258e514be0264871fa645a2c3edad11 (Patch, patch)
- github.com/osrg/gobgp/releases/tag/v4.4.0 (Product, Patch, patch)
- vuldb.com/submit/807581 (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/vuln/360909 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/360909/cti (signature, Permissions Required, permissions-required, VDB Entry)
Frequently asked questions
- What is CVE-2026-7734?
- CVE-2026-7734 is a medium-severity vulnerability in Osrg Gobgp, classified under Improper Resource Shutdown or Release. CVSS score: 5.3/10. Published 2026-05-04.
- How severe is CVE-2026-7734?
- Medium severity. CVSS v3 base score is 5.3 out of 10.