Vulnerability Description
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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Osrg | Gobgp | < 4.4.0 |
Related Weaknesses (CWE)
References
- https://github.com/osrg/gobgp/Product
- https://github.com/osrg/gobgp/commit/67c059413470df64bc20801c46f64058e88f800fPatch
- https://github.com/osrg/gobgp/pull/3342Issue Tracking
- https://vuldb.com/submit/780179Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/354155Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/354155/ctiPermissions RequiredVDB Entry
FAQ
What is CVE-2026-5123?
CVE-2026-5123 is a vulnerability with a CVSS score of 3.7 (LOW). 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-...
How severe is CVE-2026-5123?
CVE-2026-5123 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-5123?
Check the references section above for vendor advisories and patch information. Affected products include: Osrg Gobgp.