Paper/Archive/CVE-2026-2521

CVE-2026-2521

VulDB — Open5GS SGW-C sgwc_s5c_handle_create_session_response memory corruption

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Open5GS2.7.0–CNA
Open5GS2.7.1–CNA
Open5GS2.7.2–CNA
Open5GS2.7.3–CNA
Open5GS2.7.4–CNA
Open5GS2.7.5–CNA
Open5GS2.7.6–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulDB (CNA)6.9CVSS: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
VulDB (CNA)5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
VulDB (CNA)5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: partial

References

writeupvuldb.com/?id.346109refvuldb.com/?ctiid.346109writeupvuldb.com/?submit.738334refgithub.com/open5gs/open5gs/issues/4282exploitgithub.com/open5gs/open5gs/issues/4282#issue-3807902188refgithub.com/open5gs/open5gs