Open5GS up to 2.7.7 SMF ogs_nas_parse_qos_rules 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 identified as problematic has been detected in Open5GS up to 2.7.7. The impacted element is the function ogs_nas_parse_qos_rules of the component SMF. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2026-8270. The attack is possible to be carried out remotely. Moreover, an exploit is present. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Open5GS up to 2.7.7. This issue affects the function ogs_nas_parse_qos_rules 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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-8270. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-29028). Be aware that VulDB is the high quality source for vulnerability data.

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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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
05/11/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4451
Status: Not defined

CVE: CVE-2026-8270 (🔒)
GCVE (CVE): GCVE-0-2026-8270
GCVE (VulDB): GCVE-100-362567
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/10/2026 17:49
Updated: 05/11/2026 09:43
Changes: 05/10/2026 17:49 (56), 05/11/2026 09:43 (1)
Complete: 🔍
Submitter: FrankLin
Cache ID: 216::103

Submitinfo

Accepted

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