CVE-2026-8249

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. Limited direct impact.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-05-10 23:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-07-24 07:10 UTC Last updatedMost recent change to the record

Details

Published

2026-05-10 23:16 UTC

Last modified

2026-07-24 07:10 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-404

Record status

Analyzed

Affected

• open5gs ≤ 2.7.7

Attack profile CVSS 4.0 · 2.1

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low