Parser-detail disclosure via missing error-path return
Published Feb 24, 2026 · Updated Feb 24, 2026
Information exposure in free5GC UDR 1.4.1 and earlier allows remote attackers to read internal parser details via PFD requests. GetApplicationDataIndividualPfdFromDBProcedure writes an error response but continues and writes again because the error path lacks a return. Nnef_PfdManagement must be reachable, and requesting a nonexistent appId exposes parser and error details useful for service fingerprinting.
Summary
What happened
Information exposure in free5GC UDR 1.4.1 and earlier allows remote attackers to read internal parser details via PFD requests. GetApplicationDataIndividualPfdFromDBProcedure writes an error response but continues and writes again because the error path lacks a return. Nnef_PfdManagement must be reachable, and requesting a nonexistent appId exposes parser and error details useful for service fingerprinting.
The record
- CVE
- CVE-2025-69253
- Published
- Feb 24, 2026
- Updated
- Feb 24, 2026
- Vendor
- free5GC
- Product
- Unified Data Repository (UDR)
- Classifications
- CWE-209, T1595.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 24, 2026CVE publishedPublication date reported by the CVE source.
- Feb 24, 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 reproduction requestproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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