CVE-2026-1976

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.

• CWE-404
• CWE-476
• CWE-476

• https://github.com/free5gc/free5gc/Product
• https://github.com/free5gc/free5gc/issues/817Exploit, Issue Tracking, Vendor Advisory
• https://github.com/free5gc/free5gc/issues/817#issue-3832188092Exploit, Issue Tracking, Vendor Advisory
• https://github.com/free5gc/smf/pull/189Issue Tracking
• https://vuldb.com/?ctiid.344498Permissions Required, VDB Entry
• https://vuldb.com/?id.344498Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.743239Exploit, Third Party Advisory, VDB Entry

Published

Feb 6, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-19754Baserow 2.3.3 contains a SQL injection vulnerability in the …8.6
• CVE-2026-19755NoSleep 1.5.1 exposes a privileged XPC Mach service and acce…6.9
• CVE-2026-19756A vulnerability has been found in Dromara lamp-cloud up to 5…6.3
• CVE-2026-19757A vulnerability was found in Dromara lamp-cloud up to 5.10.0…7.3
• CVE-2026-19758A vulnerability was determined in dromara lamp-cloud up to 5…7.3
• CVE-2026-19759An Incorrect Authorization vulnerability in the task configu…9.4
• CVE-2026-19760The WP Fastest Cache – WordPress Cache Plugin plugin for Wor…7.2
• CVE-2026-19761A vulnerability has been found in DTStack Taier 1.4.0. Affec…5.1
• CVE-2026-19762A vulnerability was found in DTStack Taier 1.4.0. Affected b…7.3
• CVE-2026-19763A vulnerability was determined in DTStack Taier 1.4.0. Affec…3.8
• CVE-2026-19764A vulnerability was identified in Raisecom Communication Com…7.3
• CVE-2026-19765A security flaw has been discovered in eyaushev swagger-test…6.3