VulnerabilityDeferred

CVE-2026-15720

In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service.

HIGH 8.6EPSS 0.54%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service.

CVSS 3.1: 8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS: 0.54% probability · 44th percentile
CISA KEV: Not listed
Weakness: CWE-125
Source: 74b3a70d-cca6-4d34-9789-e83b222ae3be

References

https://github.com/open5gs/open5gs/security/advisories/GHSA-f4mx-3x6p-cfwp
https://github.com/open5gs/open5gs/security/advisories/GHSA-f4mx-3x6p-cfwp

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.