Open5GS up to 2.7.6 CreateBearerRequest /src/sgwc/s5c-handler.c sgwc_s5c_handle_create_bearer_request assertion

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.69

Summaryinfo

A vulnerability was found in Open5GS up to 2.7.6. It has been declared as problematic. The impacted element is the function sgwc_s5c_handle_create_bearer_request of the file /src/sgwc/s5c-handler.c of the component CreateBearerRequest Handler. Executing a manipulation can lead to assertion. This vulnerability is handled as CVE-2026-1737. The attack can be executed remotely. Additionally, an exploit exists. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.

Detailsinfo

A vulnerability was found in Open5GS up to 2.7.6. It has been declared as problematic. This vulnerability affects the function sgwc_s5c_handle_create_bearer_request of the file /src/sgwc/s5c-handler.c of the component CreateBearerRequest Handler. The manipulation with an unknown input leads to a assertion vulnerability. The CWE definition for the vulnerability is CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. As an impact it is known to affect availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-1737. 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.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The issue report is flagged as already-fixed.

Applying a patch is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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: 5.3
VulDB Meta Temp Score: 5.0

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

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Assertion
CWE: CWE-617
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: 🔒

Timelineinfo

02/01/2026 Advisory disclosed
02/01/2026 +0 days VulDB entry created
02/02/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4271
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-1737 (🔒)
GCVE (CVE): GCVE-0-2026-1737
GCVE (VulDB): GCVE-100-343636
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/01/2026 08:50
Updated: 02/02/2026 03:28
Changes: 02/01/2026 08:50 (59), 02/02/2026 03:28 (31)
Complete: 🔍
Submitter: LinZiyu
Cache ID: 216::103

Submitinfo

Accepted

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