CVE-2026-8248: Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-10 · updated 2026-07-24
Weakness: CWE-404

Description

A vulnerability was detected in Open5GS up to 2.7.7. The affected element is the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. The manipulation results in denial of service. The attack may 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.

Affected products

Open5GS: through 2.7.7

References

https://github.com/open5gs/open5gs/
https://github.com/open5gs/open5gs/issues/4442
https://vuldb.com/submit/808472
https://vuldb.com/vuln/362545
https://vuldb.com/vuln/362545/cti

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