Medium 6.6Published Feb 23, 2026

CVE-2025-69253free5GC vulnerable to improper error handling in NEF with information exposure

Updated under an hour ago (Oct 26, 2026, 7:10 AM ET)

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It affects free5gc udr. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for free5gc udr

Exploited in the last 30 days

free5GC is an open-source project for 5th generation (5G) mobile core networks. Versions up to and including 1.4.1 of the User Data Repository are affected by Improper Error Handling with Information Exposure. The NEF component reliably leaks internal parsing error details (e.g., invalid character 'n' after top-level value) to remote clients, which can aid attackers in service fingerprinting. All deployments of free5GC using the Nnef_PfdManagement service may be vulnerable. free5gc/udr pull request 56 contains a patch. No direct workaround is available at the application level. Applying the official patch is recommended.

CVSS: 6.6 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
Weakness (CWE): CWE-209
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Feb 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

free5gc udr free5gc:udr (from the name)	through 1.4.1	CNA record
free5gc udr free5gc:udr	through 1.4.1	NVD

References

https://github.com/free5gc/free5gc/security/advisories/GHSA-cj2h-x8qm-xgwcx-refsource-confirm, vendor-advisory
https://github.com/free5gc/free5gc/issues/753x-refsource-misc, exploit, issue-tracking, vendor-advisory
https://github.com/free5gc/udr/pull/56x-refsource-misc, issue-tracking, patch, vendor-advisory
https://github.com/free5gc/udr/commit/754d23b03755ad59077ed529ce3b971e477080c4x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.