Open5GS up to 2.7.6 SGWC /src/sgwc/context.c sgwc_tunnel_add pdr assertion

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k1.02

Summaryinfo

A vulnerability was found in Open5GS up to 2.7.6. It has been rated as problematic. This affects the function sgwc_tunnel_add of the file /src/sgwc/context.c of the component SGWC. The manipulation of the argument pdr leads to assertion. This vulnerability is uniquely identified as CVE-2026-1738. The attack is possible to be carried out remotely. Moreover, an exploit is present. Applying a patch is the recommended action to fix 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 rated as problematic. This issue affects the function sgwc_tunnel_add of the file /src/sgwc/context.c of the component SGWC. The manipulation of the argument pdr with an unknown input leads to a assertion vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-1738. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available 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.

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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: 4261
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-1738 (🔒)
GCVE (CVE): GCVE-0-2026-1738
GCVE (VulDB): GCVE-100-343637
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 (60), 02/02/2026 03:28 (31)
Complete: 🔍
Submitter: ZiyuLin
Cache ID: 216::103

Submitinfo

Accepted

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