CVE-2026-8266CWE-404

Open5GS SMF gsm-build.c gsm_build_pdu_session_establishment_accept denial of service

Medium · published May 11, 2026

CVSS v4.0
5.3
EPSS
1%
Percentile
51.7
In the wild
Unconfirmed
What it is

A vulnerability was detected in Open5GS up to 2.7.7. This affects the function gsm_build_pdu_session_establishment_accept of the file /src/smf/gsm-build.c of the component SMF. The manipulation results in denial of service. The attack can be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00676 · 51.7th percentile
Weakness
CWE-404 · Improper Resource Shutdown or Release
Published
2026-05-11T02:45Z
EPSS history
Timeline
  • 11 MAY 02:45Z
    Open5GS SMF gsm-build.c gsm_build_pdu_session_establishment_accept denial of service
    cvelistv5