CVE-2026-1976

MEDIUM EPSS 40.6%
Published Feb 6, 20264mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 4.0
Medium
Find Similar
Published Feb 6, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
5.5
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
40.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-404
CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 1

VendorProductVersionRange
free5gcfree5gc* ≤4.1.0

References 7

  • github.com https://github.com/free5gc/free5gc/
    Product
  • github.com https://github.com/free5gc/free5gc/issues/817
    ExploitIssue TrackingVendor Advisory
  • github.com https://github.com/free5gc/free5gc/issues/817#issue-3832188092
    ExploitIssue TrackingVendor Advisory
  • github.com https://github.com/free5gc/smf/pull/189
    Issue Tracking
  • vuldb.com https://vuldb.com/?ctiid.344498
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.344498
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.743239
    ExploitThird Party AdvisoryVDB Entry

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.