CVE-2026-1975
Free5GC pfcp_reports.go identityTriggerType null pointer dereference
Description
A security flaw has been discovered in Free5GC up to 4.1.0. This impacts the function identityTriggerType of the file pfcp_reports.go. The manipulation results in null pointer dereference. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. Applying a patch is advised to resolve this issue.
INFO
Published Date :
Feb. 6, 2026, 3:15 a.m.
Last Modified :
Feb. 9, 2026, 3:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Apply the vendor patch to resolve the issue.
- Update Free5GC to the latest version.
- Review pfcp_reports.go for null pointer dereferences.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-1975.
| URL | Resource |
|---|---|
| https://github.com/free5gc/free5gc/ | Product |
| https://github.com/free5gc/free5gc/issues/814 | ExploitIssue TrackingVendor Advisory |
| https://github.com/free5gc/free5gc/issues/814#issue-3831993593 | ExploitIssue TrackingVendor Advisory |
| https://github.com/free5gc/smf/pull/189 | Issue Tracking |
| https://vuldb.com/?ctiid.344497 | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.344497 | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.743238 | ExploitThird Party AdvisoryVDB Entry |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-1975 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-1975
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-1975 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-1975 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 09, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:* versions up to (including) 4.1.0 Added Reference Type VulDB: https://github.com/free5gc/free5gc/ Types: Product Added Reference Type VulDB: https://github.com/free5gc/free5gc/issues/814 Types: Exploit, Issue Tracking, Vendor Advisory Added Reference Type VulDB: https://github.com/free5gc/free5gc/issues/814#issue-3831993593 Types: Exploit, Issue Tracking, Vendor Advisory Added Reference Type VulDB: https://github.com/free5gc/smf/pull/189 Types: Issue Tracking Added Reference Type VulDB: https://vuldb.com/?ctiid.344497 Types: Permissions Required, VDB Entry Added Reference Type VulDB: https://vuldb.com/?id.344497 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/?submit.743238 Types: Exploit, Third Party Advisory, VDB Entry -
New CVE Received by [email protected]
Feb. 06, 2026
Action Type Old Value New Value Added Description A security flaw has been discovered in Free5GC up to 4.1.0. This impacts the function identityTriggerType of the file pfcp_reports.go. The manipulation results in null pointer dereference. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. Applying a patch is advised to resolve this issue. Added CVSS V4.0 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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CWE CWE-476 Added CWE CWE-404 Added Reference https://github.com/free5gc/free5gc/ Added Reference https://github.com/free5gc/free5gc/issues/814 Added Reference https://github.com/free5gc/free5gc/issues/814#issue-3831993593 Added Reference https://github.com/free5gc/smf/pull/189 Added Reference https://vuldb.com/?ctiid.344497 Added Reference https://vuldb.com/?id.344497 Added Reference https://vuldb.com/?submit.743238