CVE-2025-63916MyScreenTools v2.2.1.0 contains a critical OS command injection vulnerability in the GIF compression tool.
Updated under an hour ago ()
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MyScreenTools v2.2.1.0 contains a critical OS command injection vulnerability in the GIF compression tool. The application fails to properly sanitize user-supplied file paths before passing them to cmd.exe, allowing attackers to execute arbitrary system commands with the privileges of the user running the application. The vulnerability exists in the CMD() function within GIFSicleTool\Form_gif_sicle_tool.cs, which constructs shell commands by concatenating unsanitized user input (file paths) and executes them via cmd.exe.
- CVSS
- 8.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-78
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
luotengyuan myscreentools luotengyuan:myscreentools | through 2.2.1.0 | NVD |
References
- https://github.com/cydtseng/Vulnerability-Research/blob/main/myscreentools/OSCommandInjection-GifCompression.mdexploit, mitigation, third-party-advisory
- https://github.com/luotengyuan/MyScreenTools/blob/master/GIFSicleTool/Form_gif_sicle_tool.csproduct
- https://github.com/luotengyuan/MyScreenTools/tree/masterproduct
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.