CVE-2026-2521

medium

Description

A weakness has been identified in Open5GS up to 2.7.6. This issue affects the function sgwc_s5c_handle_create_session_response of the component SGW-C. Executing a manipulation can lead to memory corruption. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

References

https://vuldb.com/?submit.738334

https://vuldb.com/?id.346109

https://github.com/open5gs/open5gs/issues/4282#issue-3807902188

https://vuldb.com/?ctiid.346109

https://github.com/open5gs/open5gs/issues/4282

https://github.com/open5gs/open5gs/

Details

Source: Mitre, NVD

Published: 2026-02-15

Updated: 2026-02-18

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 9.8

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

Severity: Critical

CVSS v4

Base Score: 6.9

Vector: 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

Severity: Medium

EPSS

EPSS: 0.00015