CVE-2026-1973

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 vulnerability was determined in Free5GC up to 4.1.0. The impacted element is the function establishPfcpSession of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. It is best practice to apply a patch to resolve 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/815
    ExploitIssue TrackingVendor Advisory
  • github.com https://github.com/free5gc/free5gc/issues/815#issue-3832032062
    ExploitIssue TrackingVendor Advisory
  • github.com https://github.com/free5gc/smf/pull/189
    Issue Tracking
  • vuldb.com https://vuldb.com/?ctiid.344495
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.344495
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.743236
    ExploitThird Party AdvisoryVDB Entry

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.