Integer overflow in Osrg Gobgp
CVE-2026-7736
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…
EPSS: 0.000 (6.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Osrg Gobgp — versions 4.0, 4.1, 4.2
Weakness classification (CWE)
References
- cna@vuldb.com (Product, product)
- cna@vuldb.com (Patch, patch)
- cna@vuldb.com (Product, Patch, patch)
- Submit #807604 | osrg GoBGP <= 4.3.0 Integer Underflow (Third Party Advisory, VDB Entry, third-party-advisory)
- VDB-360911 | osrg GoBGP mrt.go parseRibEntry integer underflow (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-360911 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
Frequently asked questions
- What is CVE-2026-7736?
- CVE-2026-7736 is a high-severity vulnerability in Osrg Gobgp, classified under CWE-189. CVSS score: 7.3/10. Published 2026-05-04.
- How severe is CVE-2026-7736?
- High severity. CVSS v3 base score is 7.3 out of 10.