Open5GS up to 2.7.6 src/sgwc/s5c-handler.c sgwc_s5c_handle_create_session_response denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Open5GS up to 2.7.6. This affects the function sgwc_s5c_handle_create_session_response of the file src/sgwc/s5c-handler.c. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2025-15529. The attack can be executed remotely. Additionally, an exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic was found in Open5GS up to 2.7.6. This vulnerability affects the function sgwc_s5c_handle_create_session_response of the file src/sgwc/s5c-handler.c. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-15529. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1499.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Applying the patch b19cf6a2dbf5d30811be4488bf059c865bd7d1d2 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-206295). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

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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: Patch
Status: 🔍

0-Day Time: 🔒

Patch: b19cf6a2dbf5d30811be4488bf059c865bd7d1d2

Timelineinfo

01/16/2026 Advisory disclosed
01/16/2026 +0 days VulDB entry created
02/09/2026 +24 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4226
Status: Confirmed

CVE: CVE-2025-15529 (🔒)
GCVE (CVE): GCVE-0-2025-15529
GCVE (VulDB): GCVE-100-341596
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/16/2026 17:41
Updated: 02/09/2026 21:59
Changes: 01/16/2026 17:41 (58), 01/17/2026 03:34 (1), 01/17/2026 13:18 (31), 02/09/2026 21:59 (11)
Complete: 🔍
Submitter: ZiyuLin
Cache ID: 216::103

Submitinfo

Accepted

Duplicate

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