Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-63916
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 6 Nov 2026, 01:57 UTC · Revision 1
Source evidence
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.
osv:CVE-2025-63916
Complete source record
{
"id": "14a617267f85ef8fb6fff4b6cb8ba100d735246eca051258c3525937dce7fb3f",
"url": "https://osv.dev/vulnerability/CVE-2025-63916",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2025-63916",
"summary": "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.",
"evidence": "osv:CVE-2025-63916",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2025-63916",
"aliases": [
"CVE-2025-63916"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/luotengyuan/myscreentools",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "8ea983027283a73b6851ac6afea5cc0bd70846bd"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:luotengyuan:myscreentools:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "2.2.1.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"V2.2.1.0",
"V2.2.0.0",
"V2.1.0.0",
"V2.0.1.1",
"V2.0.1.0",
"V2.0.0.1",
"V2.0.0.0",
"V1.0.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-63916.json"
}
}
],
"modified": "2026-10-28T02:30:46.173947121Z",
"provider": "osv",
"references": [
"https://github.com/cydtseng/Vulnerability-Research/blob/main/myscreentools/OSCommandInjection-GifCompression.md",
"https://github.com/luotengyuan/MyScreenTools/blob/master/GIFSicleTool/Form_gif_sicle_tool.cs",
"https://github.com/luotengyuan/MyScreenTools/tree/master",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/63xxx/CVE-2025-63916.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-63916"
],
"provider_metadata": {
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/63xxx/CVE-2025-63916.json"
}
},
"related_cves": [
{
"value": "CVE-2025-63916",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 514059,
"published_at": "2025-11-17T00:00:00+00:00"
}