CVE-2026-8251 | THREATINT

Description

A vulnerability was found in Open5GS up to 2.7.7. This impacts the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. Performing a manipulation results in denial of service. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-05-10 | Published 2026-05-10 | Updated 2026-05-10 | Assigner VulDB

MEDIUM: 5.3CVSS: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

MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

MEDIUM: 4.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

4.0AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Denial of Service

Timeline

2026-05-10:	Advisory disclosed
2026-05-10:	VulDB entry created
2026-05-10:	VulDB entry last update

Credits

FrankLin (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/362548 (VDB-362548 | Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service) vdb-entry technical-description

vuldb.com/vuln/362548/cti (VDB-362548 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/808480 (Submit #808480 | Open5gs SMF v2.7.7 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4445 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-8251)

nvd.nist.gov (CVE-2026-8251)

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