CVE-2026-2524: Open5GS MME mme_s11_handle_create_session_response denial of service

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-02-16 · updated 2026-06-17
Weakness: CWE-404

Description

A flaw has been found in Open5GS 2.7.6. The impacted element is the function mme_s11_handle_create_session_response of the component MME. This manipulation causes denial of service. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

Open5GS: 2.7.6

References

https://github.com/open5gs/open5gs/
https://github.com/open5gs/open5gs/issues/4284
https://github.com/open5gs/open5gs/issues/4284#issue-3808462406
https://vuldb.com/?ctiid.346112
https://vuldb.com/?id.346112
https://vuldb.com/?submit.738369

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