Information disclosure in Claris FileMaker Server
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-200.
Summary
To enhance security, the FileMaker Server 22.0.4 installer now includes an option to disable IIS short filename enumeration by setting NtfsDisable8dot3NameCreation in the Windows registry. This prevents attackers from using the tilde character to discover hidden files and directories. This vulnerability has been fully addressed in FileMaker Server 22.0.4. The IIS Shortname Vulnerability exploits how Microsoft IIS handles legacy 8.3 short filenames, allowing attackers to infer the existence of files or directories by crafting requests with the tilde (~) character.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA FileMaker Server (Claris) Fixed in 22.0.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Claris FileMaker Server 22.0.4
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2025-29047 Code injection in Claris FileMaker ServerPriority MEDIUM 51
- TI-2025-29048 Improper authorization in Claris FileMaker ServerPriority LOW 24
Timeline
- 2026-10-02 Threatist record created from CVE-2025-46294
- 2026-10-03 Alias added: GHSA-2jrm-5c9c-9px7
References
More Claris Filemaker Server vulnerabilities
- TI-2025-29047 Code injection in Claris FileMaker Server CVSS 3.1CRITICAL 9.8
- TI-2026-59422 Authorization bypass in Claris FileMaker Server CVSS 3.1CRITICAL 9.1
- TI-2026-59421 Out-of-bounds read in Claris FileMaker Server CVSS 3.1CRITICAL 9.1
- TI-2024-18405 Improper access control in Claris FileMaker Server CVSS 3.1HIGH 7.5
- TI-2026-59420 Heap-based buffer overflow in Claris FileMaker Server CVSS 3.1HIGH 7.8
- TI-2023-23030 A privilege escalation issue existed in FileMaker Server, potentially exposing sensitive… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-46294 · CVE Program
- CVE-2025-46294 · NVD
- FIRST EPSS
- GHSA-2jrm-5c9c-9px7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences