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Description

A security flaw has been discovered in Open5GS up to 2.7.7. This vulnerability affects the function ogs_pcc_rule_install_flow_from_media in the library /lib/proto/types.c. The manipulation results in denial of service. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-05-09 | Published 2026-05-10 | Updated 2026-05-10 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
5.0AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Denial of Service

Timeline

2026-05-09:Advisory disclosed
2026-05-09:VulDB entry created
2026-05-09:VulDB entry last update

Credits

LinZiyu (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/362443 (VDB-362443 | Open5GS types.c ogs_pcc_rule_install_flow_from_media denial of service) vdb-entry technical-description

vuldb.com/vuln/362443/cti (VDB-362443 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/808445 (Submit #808445 | Open5gs PCF v2.7.7 Denial of Service) third-party-advisory

github.com/open5gs/open5gs/issues/4441 exploit issue-tracking

github.com/open5gs/open5gs/ product

cve.org (CVE-2026-8226)

nvd.nist.gov (CVE-2026-8226)

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