Information disclosure via continued error-response execution
Published Feb 23, 2026 · Updated Feb 23, 2026
Information exposure in free5GC UDR before 1.4.1 allows remote attackers to obtain internal parser errors through PFD requests. GetApplicationDataIndividualPfdFromDBProcedure writes a 404 ProblemDetails response but, without a return, continues to write a success body, appending null and creating invalid JSON. No authentication or user interaction is required; a nonexistent application identifier exposes parser details that support server fingerprinting without altering data or service availability.
Summary
What happened
Information exposure in free5GC UDR before 1.4.1 allows remote attackers to obtain internal parser errors through PFD requests. GetApplicationDataIndividualPfdFromDBProcedure writes a 404 ProblemDetails response but, without a return, continues to write a success body, appending null and creating invalid JSON. No authentication or user interaction is required; a nonexistent application identifier exposes parser details that support server fingerprinting without altering data or service availability.
The record
- CVE
- CVE-2025-69208
- Published
- Feb 23, 2026
- Updated
- Feb 23, 2026
- Vendor
- free5GC
- Product
- Unified Data Repository (UDR)
- Classifications
- CWE-209, T1595.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 23, 2026CVE publishedPublication date reported by the CVE source.
- Feb 23, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 1.4.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream Nnef_PfdManagement reproductionproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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