CVE-2026-1586

Name: CVE-2026-1586
Creator: NVD / NIST
Published: 2026-01-29T13:15:53.113+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2026-1586 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A flaw has been found in Open5GS up to 2.7.5. Impacted is the function ogs_gtp2_f_teid_to_ip of the file /sgwc/s11-handler.c of the component SGWC. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

A flaw has been found in Open5GS up to 2.7.5. Impacted is the function ogs_gtp2_f_teid_to_ip of the file /sgwc/s11-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack may be performed from remote. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.

Metrics

CVSS 3.1

7.5/10

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

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

0.51%

39.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-404

Affected Software

Vendor	Product	Versions
Open5gs	Open5gs	< 2.7.6

References

https://github.com/open5gs/open5gs/
https://github.com/open5gs/open5gs/issues/4273Exploit, Issue Tracking, Vendor Advisory
https://github.com/open5gs/open5gs/issues/4273#event-21968643659Exploit, Issue Tracking, Vendor Advisory
https://github.com/open5gs/open5gs/issues/4273#issue-3796030721Exploit, Issue Tracking, Vendor Advisory
https://vuldb.com/?ctiid.343349Permissions Required, VDB Entry
https://vuldb.com/?id.343349Third Party Advisory, VDB Entry
https://vuldb.com/?submit.738375Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Jan 29, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-1586?

How severe is CVE-2026-1586?

CVE-2026-1586 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2026-1586?

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-2026-1586?

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

Scan your code now

Source: NVD / NIST