Open5GS up to 2.7.7 SMF /src/smf/npcf-handler.c update_authorized_pcc_rule_and_qos denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Open5GS up to 2.7.7. This affects the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2026-8249. The attack can be executed remotely. Additionally, an exploit exists. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in Open5GS up to 2.7.7. It has been rated as problematic. Affected by this issue is the function update_authorized_pcc_rule_and_qos of the file /src/smf/npcf-handler.c of the component SMF. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-8249. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The exploit is available at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/10/2026 Advisory disclosed
05/10/2026 +0 days VulDB entry created
05/10/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4443
Status: Not defined

CVE: CVE-2026-8249 (🔒)
GCVE (CVE): GCVE-0-2026-8249
GCVE (VulDB): GCVE-100-362546
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/10/2026 16:45
Changes: 05/10/2026 16:45 (57)
Complete: 🔍
Submitter: LinZiyu
Cache ID: 216::103

Submitinfo

Accepted

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