CVE-2026-2521
Last modified
CVE-2026-2521 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.68% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Open5gs | Open5gs | <= 2.7.6 |
References
- https://github.com/open5gs/open5gs/issues/4282Exploit, Issue Tracking, Vendor Advisory
- https://github.com/open5gs/open5gs/issues/4282#issue-3807902188Exploit, Issue Tracking, Vendor Advisory
- https://vuldb.com/?ctiid.346109Permissions Required, VDB Entry
- https://vuldb.com/?id.346109Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.738334Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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