CVE-2026-1976
Free5GC SMF SessionDeletionResponse null pointer dereference
MEDIUM 5.5EPSS 0.6%
A weakness has been identified in Free5GC up to 4.1.0. Affected is the function SessionDeletionResponse of the component SMF. This manipulation causes null pointer dereference. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. It is suggested to install a patch to address this issue.
- Affected
- Free5GC
- CVSS v4.0 VULDB
- 5.5 MEDIUM
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 - CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS v3.1 VULDB
- 5.3 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS v2.0 VULDB
- 5.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P - EPSS
- 0.61% chance of exploitation in the next 30 days, 48th percentile
- Published
- 2026-02-06
- Updated
- 2026-02-23
Proof-of-concept exploits (1)
- free5gc/free5gc/issues/817#issue-38321880922358★ · 2026-09-30
Security advisories
- free5gc/free5gc/issues/817
- https://vuldb.com/?id.344498
- https://vuldb.com/?submit.743239
- free5gc/smf/pull/189