VDB
CVE-2026-7736
CVE-2026-7736
PUBLISHED
CVSS 6.9 MEDIUM
Reported by VulDB · Published May 4, 2026
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 attack remotely. Upgrading to version 4.4.0 addresses this issue. This patch is called 76d911046344a3923cbe573364197aa081944592. It is suggested to upgrade the affected component.
Risk Scores
CVSS 4.0
6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| osrg | GoBGP | 4.0, 4.1, 4.2 |
| osrg | GoBGP | 4.1, 4.2, 4.3.0 |
Timeline
- May 4, 2026 CVE Published
- May 4, 2026 EPSS Score
- May 4, 2026 PoC Published
- May 6, 2026 CVE Updated
- May 9, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
References
- VDB-360911 | osrg GoBGP mrt.go parseRibEntry integer underflow vdb-entrytechnical-description
- VDB-360911 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
- Submit #807604 | osrg GoBGP <= 4.3.0 Integer Underflow third-party-advisory
- patch
- patch
- product