CVE-2026-2521

low-risk
Published 2026-02-15

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.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Open5Gs

References (6)

Product https://github.com/open5gs/open5gs/
Exploit https://github.com/open5gs/open5gs/issues/4282
Exploit https://github.com/open5gs/open5gs/issues/4282#issue-3807902188
Permissions Required https://vuldb.com/?ctiid.346109
Third Party Advisory https://vuldb.com/?id.346109
Third Party Advisory https://vuldb.com/?submit.738334
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal