CVE-2026-5123
3.7 · LOWOverview
CVE-2026-5123 is a low-severity vulnerability affecting osrg gobgp. It was published on March 30, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).
This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from osrg. Update gobgp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| osrg | gobgp | >= 0, < 4.4.0 | Affected |
Frequently Asked Questions
What is CVE-2026-5123?
CVE-2026-5123 is a low-severity vulnerability affecting osrg gobgp. It was published on March 30, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).
How severe is CVE-2026-5123?
This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-5123?
Check the references section for vendor advisories and patches from osrg. Update gobgp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-5123?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-5123 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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