Improper Encoding or Escaping of Output in Deck - CVE-2025-66548
Published: December 5, 2025
Vulnerability identifier: #VU119222
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-66548
CWE-ID: CWE-116
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to improper encoding or escaping of output. A local user can spoof file extensions by using RTLO characters.
Affected software
Deck
How to mitigate CVE-2025-66548
Install updates from vendor's website.
Deck - addressed in versions 1.12.7, 1.14.4, 1.15.1