What is CVE-2026-7535?

CVE-2026-7535 is a medium-severity vulnerability in Open5gs, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-05-01.

How severe is CVE-2026-7535?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Open5gs

CVE-2026-7535

A vulnerability was found in Open5GS up to 2.7.7. This affects the function amf_namf_comm_handle_registration_status_update_request in the library /lib/app/ogs-init.c of the file /namf-comm/v1/ue-contexts/{ueContextId}/transfer-update. Per…

EPSS: 0.001 (22.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

N/a Open5gs — versions 2.7.0, 2.7.1, 2.7.2

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

VDB-360352 | Open5GS transfer-update denial of service (technical-description, vdb-entry)
VDB-360352 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
Submit #804291 | Open5GS AMF V2.7.7 Denial of Service (third-party-advisory)
Submit #804303 | Open5GS AMF v2.7.7 Denial of Service (Duplicate) (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-7535?: CVE-2026-7535 is a medium-severity vulnerability in Open5gs, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-05-01.
How severe is CVE-2026-7535?: Medium severity. CVSS v3 base score is 4.3 out of 10.