CVE-2025-63916Public exploit

Command execution via unsanitized GIF file path

Published Nov 17, 2025 · Updated Nov 17, 2025

OS command injection in MyScreenTools 2.2.1.0 and earlier allows context-dependent attackers to execute commands through crafted GIF file paths. The GIF Compression form's CMD() function concatenates an untrusted path into a command sent to cmd.exe, and CheckSafePath() does not reject the ampersand separator. Exploitation requires the crafted file to be added and processed in the GUI; injected commands run with the application user's privileges.

CVSS severity8.1
High
EPSS probability1.59%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in MyScreenTools 2.2.1.0 and earlier allows context-dependent attackers to execute commands through crafted GIF file paths. The GIF Compression form's CMD() function concatenates an untrusted path into a command sent to cmd.exe, and CheckSafePath() does not reject the ampersand separator. Exploitation requires the crafted file to be added and processed in the GUI; injected commands run with the application user's privileges.

The record

CVE
CVE-2025-63916
Published
Nov 17, 2025
Updated
Nov 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.003
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Nov 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.003Windows Command Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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