CVE-2026-8744

MEDIUM

Open5GS NRF context.c ogs_sbi_nf_service_add denial of service

Title source: cna
STIX 2.1

Description

A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 819db11a08b9736a3576c4f99ceb28f7eb99523a. A patch should be applied to remediate this issue.

References (9)

Core 9
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-364331 | Open5GS NRF context.c ogs_sbi_nf_service_add denial of service
https://vuldb.com/vuln/364331
Signature, Permissions Required signature permissions-required
VDB-364331 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/364331/cti
Third Party Advisory third-party-advisory
Submit #817029 | Open5GS NRF v2.7.7 Denial of Service
https://vuldb.com/submit/817029
Third Party Advisory third-party-advisory
Submit #817030 | Open5GS NRF v2.7.7 Denial of Service (Duplicate)
https://vuldb.com/submit/817030
Issue Tracking issue-tracking
https://github.com/open5gs/open5gs/issues/4465
Exploit exploit issue-tracking
https://github.com/open5gs/open5gs/issues/4466

Scores

CVSS v3 4.3
EPSS 0.0046
EPSS Percentile 35.9%
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