CVE-2025-63916: MyScreenTools v2.2.1.0 contains a critical OS command injection vulnerability in the GIF compression tool

Q: How do I fix CVE-2025-63916?

myscreentools: upgrade to newer than 2.2.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-63916 being exploited?

CVE-2025-63916 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-63916 affect?

CVE-2025-63916 affects myscreentools. Severity is high (CVSS 8.1). 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 arb

Q: How urgent is CVE-2025-63916?

Priority 52/100. High severity; Public exploit reference

This month

HIGH 8.1UPGRADE

CVE-2025-63916 is a high-severity flaw (CVSS 8.1) affecting myscreentools. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 conc

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-78
Published	2025-11-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: luotengyuan

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-17 16:15 UTCPublished CVE record published
2026-06-17 09:53 UTCUpdated Record last modified

luotengyuan myscreentools UPGRADE

Affected: <= 2.2.1.0

Fixed in: newer than 2.2.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy myscreentools || rpm -q myscreentools || myscreentools --version

2. UPGRADE to newer than 2.2.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade myscreentools

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade myscreentools

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-63916?

myscreentools: upgrade to newer than 2.2.1.0. Exact commands for each OS are on this page.

Is CVE-2025-63916 being exploited?

CVE-2025-63916 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-63916 affect?

CVE-2025-63916 affects myscreentools. Severity is high (CVSS 8.1). 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 arb

How urgent is CVE-2025-63916?

Priority 52/100. High severity; Public exploit reference

References

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