CVE-2026-8249

MEDIUM 4.3

Open5GS SMF npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

12th

A flaw has been found in Open5GS up to 2.7.7. The impacted element is the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. This manipulation causes denial of service. Remote exploitation of the attack is possible. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CWE	CWE-404
Vendor	n/a
Product	open5gs
Published	May 10, 2026
Last Updated	May 11, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / Open5GS

2.7.0 2.7.1 2.7.2 2.7.3 2.7.4 2.7.5 2.7.6 2.7.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/362546 vuldb.com: https://vuldb.com/vuln/362546/cti vuldb.com: https://vuldb.com/submit/808473 github.com: https://github.com/open5gs/open5gs/issues/4443 github.com: https://github.com/open5gs/open5gs/

Credits

🔍 LinZiyu (VulDB User) VulDB CNA Team