CVE-2025-69253: medium-severity vulnerability in free5gc udr
free5GC vulnerable to improper error handling in NEF with information exposure
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.6epss 0.4%
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: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
Affected products
free5gc · udrRelated CVEs — free5gc udr
In the same product, most dangerous first.
CVE-2026-40343MEDIUMfree5GC UDR: Fail-open handling in PolicyDataSubsToNotifyPost allows unintended subscription creationEPSS 8.6%CVE-2026-27643MEDIUMfree5GC has improper error handling in NEF with information exposureEPSS 0.3%CVE-2025-69208LOWfree5GC UDR's NEF incorrectly returns 500 for missing PFD data (UDR 404) in Nnef_PfdManagement GET requestEPSS 0.3%