What’s Vulnerable › Vulnerabilities

CVE-2025-1893: Open5GS AMF gmm-sm.c gmm_state_authentication denial of service

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-03-04 · updated 2026-06-17
• Weakness: CWE-404

Description

A vulnerability was found in Open5GS up to 2.7.2. It has been declared as problematic. Affected by this vulnerability is the function gmm_state_authentication of the file src/amf/gmm-sm.c of the component AMF. The manipulation leads to denial of service. The attack can be launched remotely. This vulnerability allows a single UE to crash the AMF, resulting in the complete loss of mobility and session management services and causing a network-wide outage. All registered UEs will lose connectivity, and new registrations will be blocked until the AMF is restarted, leading to a high availability impact. The exploit has been disclosed to the public and may be used. The patch is named e31e9965f00d9c744a7f728497cb4f3e97744ee8. It is recommended to apply a patch to fix this issue.

Affected products

• Open5GS: through 2.7.2

References

• https://github.com/open5gs/open5gs/commit/e31e9965f00d9c744a7f728497cb4f3e97744ee8
• https://github.com/open5gs/open5gs/issues/3707
• https://github.com/open5gs/open5gs/issues/3707#issue-2833194192
• https://github.com/open5gs/open5gs/issues/3707#issuecomment-2639620554
• https://vuldb.com/?ctiid.298411
• https://vuldb.com/?id.298411
• https://vuldb.com/?submit.505952
• https://github.com/open5gs/open5gs/issues/3707#issue-2833194192

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