Free5GC SMF establishPfcpSession null pointer dereference
Published Feb 6, 2026
6.9
MEDIUMCVSS 4.0
EPSS 0.56%
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.
Affected products
-
- Version 4.0StatusaffectedConstraints-
- Version 4.1.0StatusaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C
1 other source (NVD) ▾
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Feb 6, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Feb–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.56% (0.00559) | 44.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00526) | 40.16th | v5 (v2026.06.15) |
| Feb 6, 2026 | 0.05% (0.00047) | 14.30th | v4 (v2025.03.14) |
References (7)
- https://github.com/free5gc/free5gc/ product
- https://github.com/free5gc/free5gc/issues/815 issue-trackingExploitIssue TrackingVendor Advisory
- https://github.com/free5gc/free5gc/issues/815#issue-3832032062 exploitissue-trackingIssue TrackingVendor Advisory
- https://github.com/free5gc/smf/pull/189 issue-trackingpatchIssue Tracking
- https://vuldb.com/?ctiid.344495 signaturepermissions-requiredPermissions RequiredVDB Entry
- https://vuldb.com/?id.344495 vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry
- https://vuldb.com/?submit.743236 third-party-advisoryExploitThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://github.com/free5gc/free5gc/ | product | |
| https://github.com/free5gc/free5gc/issues/815 | issue-trackingExploitIssue TrackingVendor Advisory | |
| https://github.com/free5gc/free5gc/issues/815#issue-3832032062 | exploitissue-trackingIssue TrackingVendor Advisory | |
| https://github.com/free5gc/smf/pull/189 | issue-trackingpatchIssue Tracking | |
| https://vuldb.com/?ctiid.344495 | signaturepermissions-requiredPermissions RequiredVDB Entry | |
| https://vuldb.com/?id.344495 | vdb-entrytechnical-descriptionThird Party AdvisoryVDB Entry | |
| https://vuldb.com/?submit.743236 | third-party-advisoryExploitThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.