What is CVE-2026-15720?

CVE-2026-15720 is a high-severity vulnerability in Open5gs, classified under Out-of-bounds Read. CVSS score: 8.6/10. Published 2026-07-14.

How severe is CVE-2026-15720?

High severity. CVSS v3 base score is 8.6 out of 10.

Out-of-bounds Read in Open5gs

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.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Open5gs — versions 0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

74b3a70d-cca6-4d34-9789-e83b222ae3be (vendor-advisory)

Frequently asked questions

What is CVE-2026-15720?: CVE-2026-15720 is a high-severity vulnerability in Open5gs, classified under Out-of-bounds Read. CVSS score: 8.6/10. Published 2026-07-14.
How severe is CVE-2026-15720?: High severity. CVSS v3 base score is 8.6 out of 10.