Open5GS up to 2.7.6 SGWC /src/sgwc/s11-handler.c 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 classified as problematic. The affected element is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. Performing a manipulation results in assertion. This vulnerability is known as CVE-2026-1736. Remote exploitation of the attack is possible. Furthermore, an exploit is available. To fix this issue, it is recommended to deploy a patch. The issue report is flagged as already-fixed.

Detailsinfo

A vulnerability was found in Open5GS up to 2.7.6. It has been classified as problematic. This affects the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. The manipulation with an unknown input leads to a assertion vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-1736. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download 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.

Statistical analysis made it clear that VulDB provides the best quality 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: 4270
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-1736 (🔒)
GCVE (CVE): GCVE-0-2026-1736
GCVE (VulDB): GCVE-100-343635
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/01/2026 08:49
Updated: 02/02/2026 03:07
Changes: 02/01/2026 08:49 (59), 02/02/2026 03:07 (31)
Complete: 🔍
Submitter: LinZiyu
Cache ID: 216::103

Submitinfo

Accepted

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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