CVE-2026-5123
A weakness has been identified in osrg GoBGP up to 4.3.0. This impacts the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go. Executing a manipulation of the argument data[1] can lead to off-by-one. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is said to be difficult. This patch is called 67c059413470df64bc20801c46f64058e88f800f. A patch should be applied to remediate this issue.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.3
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
- EPSS probability
- 0.41%
- CWE
- CWE-193, CWE-189
- Published
- 2026-03-30
- Last modified
- 2026-03-30
Affected products
- osrg GoBGP
- osrg GoBGP
- osrg GoBGP
- osrg GoBGP
Weakness type
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