CVE-2026-8745

MEDIUM

Open5GS AUSF nausf-handler.c ogs_timer_add denial of service

Title source: cna
STIX 2.1

Description

A vulnerability was identified in Open5GS up to 2.7.7. Affected by this vulnerability is the function ogs_timer_add in the library /src/ausf/nausf-handler.c of the component AUSF. The manipulation leads to denial of service. The attack can be initiated remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-364332 | Open5GS AUSF nausf-handler.c ogs_timer_add denial of service
https://vuldb.com/vuln/364332
Signature, Permissions Required signature permissions-required
VDB-364332 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/364332/cti
Third Party Advisory third-party-advisory
Submit #817031 | Open5GS AUSF v2.7.7 Denial of Service
https://vuldb.com/submit/817031
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4472

Scores

CVSS v3 4.3
EPSS 0.0037
EPSS Percentile 28.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-404
Status published
Products (9)
None/Open5GS 2.7.0
None/Open5GS 2.7.1
None/Open5GS 2.7.2
None/Open5GS 2.7.3
None/Open5GS 2.7.4
None/Open5GS 2.7.5
None/Open5GS 2.7.6
None/Open5GS 2.7.7
open5gs/open5gs < 2.7.7
Published May 17, 2026
Tracked Since May 17, 2026