CVE-2026-15194 Open5GS CVE debrief

Who should care

Users and administrators of Open5GS 2.7.7 should be aware of this vulnerability and take necessary precautions to mitigate the risk. This includes reviewing the official advisory, verifying the presence of affected systems, and applying vendor patches or updates. Security teams and vulnerability management teams should prioritize this vulnerability based on its potential impact and the fact that the exploit has been publicly released.

Technical summary

The vulnerability is caused by a use-after-free error in the amf_context_final function of the AMF component in Open5GS 2.7.7. This can be exploited by a local attacker to potentially execute arbitrary code. The vulnerability affects the AMF component, specifically the amf_context_final function in src/amf/context.c. The attack requires local access, and the exploit has been publicly released. To mitigate this vulnerability, it is essential to review the official advisory, verify the presence of affected systems, and apply vendor patches or updates. Additionally, defenders should consider implementing compensating controls for exposed systems while remediation is scheduled and verified.

Defensive priority

Low-priority defensive actions are recommended due to the local access requirement and low CVSS score.

Recommended defensive actions

• Verify and apply vendor patches or updates
• Restrict local access to sensitive components
• Monitor system logs for suspicious activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further investigation is needed to determine the full scope of the vulnerability and affected systems. Open5GS 2.7.7 is affected, and the vulnerability is in the amf_context_final function in src/amf/context.c of the AMF component. Local access is required for the attack. The exploit has been publicly released and may be used for attacks. Defenders should verify the presence of affected systems in their environment and review the official advisory for guidance.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.