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Vulnerabilities

Security fix · CVE-2026-22035

Greenshot is an open source Windows screenshot utility.

Published Jan 8, 2026 · catalog updated Feb 26, 2026 · Greenshot is an open

Last checked Nov 8, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-22035. EPSS is 1.03%. Act only if a listed version of Greenshot is an open is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Greenshot is an open).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.03%
Remediation
Version ranges on file
Affected products
vendor greenshot greenshot < 1.3.311

Greenshot is an open source Windows screenshot utility. Versions 1.3.310 and below arvulnerable to OS Command Injection through unsanitized filename processing. The FormatArguments method in ExternalCommandDestination.cs:269 uses string.Format() to insert user-controlled filenames directly into shell commands without sanitization, allowing attackers to execute arbitrary commands by crafting malicious filenames containing shell metacharacters. This issue is fixed in version 1.3.311.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor greenshot greenshot < 1.3.311< 1.3.311

How to fix CVE-2026-22035

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-22035. EPSS is 1.03%. Act only if a listed version of Greenshot is an open is installed.

Which versions are affected?

Compare what you have installed with greenshot greenshot < 1.3.311 < 1.3.311. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.03%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 8, 2026 · EUVD

    Detected

    Greenshot is an open source Windows screenshot utility. Versions 1.3.310 and below arvulnerable to OS Command Injection through unsanitized filename processing. The FormatArguments method in ExternalCommandDestination.cs:269 uses string.Format() to insert user-controlled filenames directly into shell commands without sanitization, allowing attackers to execute arbitrary commands by crafting malici

  2. Feb 26, 2026 · EUVD

    Updated

    Greenshot is an open source Windows screenshot utility. Versions 1.3.310 and below arvulnerable to OS Command Injection through unsanitized filename processing. The FormatArguments method in ExternalCommandDestination.cs:269 uses string.Format() to insert user-controlled filenames directly into shell commands without sanitization, allowing attackers to execute arbitrary commands by crafting malici

Sources

  • CVE.orgVulnerability recordCVE-2026-22035

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-22035

    30-day exploitation probability 1.03%

    first.org
  • EUVDVulnerability recordEUVD-2026-1663

    Greenshot is an open source Windows screenshot utility. Versions 1.3.310 and below arvulnerable to OS Command Injection through unsanitized filename processing. The FormatArguments method in ExternalCommandDestination.cs:269 uses string.Format() to insert user-controlled filename

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 8, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 8, 2026
  • CVE.orgOct 30, 2026
  • EUVDOct 30, 2026