CVE-2026-1736

Name: CVE-2026-1736
Creator: NVD / NIST
Published: 2026-02-02T01:15:51.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2026-1736 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. Such manipulation leads to reachable assertion. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. A patch should be applied to remediate this issue. The issue report is flagged as already-fixed.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS 4.0

5.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.61%

44.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-617

Affected Software

Vendor	Product	Versions
Open5gs	Open5gs	<= 2.7.6

References

https://github.com/open5gs/open5gs/Product
https://github.com/open5gs/open5gs/issues/4270Exploit, Issue Tracking, Vendor Advisory
https://github.com/open5gs/open5gs/issues/4270#event-21968624624Issue Tracking
https://github.com/open5gs/open5gs/issues/4270#issue-3795141303Exploit, Issue Tracking, Vendor Advisory
https://vuldb.com/?ctiid.343635Permissions Required, VDB Entry
https://vuldb.com/?id.343635Third Party Advisory, VDB Entry
https://vuldb.com/?submit.741191Third Party Advisory, VDB Entry

Timeline

Published: Feb 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-1736?

How severe is CVE-2026-1736?

CVE-2026-1736 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2026-1736?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-1736?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST