CVE-2026-22035

Name: CVE-2026-22035
Creator: NVD / NIST
Published: 2026-01-08T01:15:55.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2026-22035 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Greenshot is an open source Windows screenshot utility. Versions 1.3.310 and below arvulnerable to OS Command Injection through unsanitized filename processing. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.3/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.90%

55.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Getgreenshot	Greenshot	< 1.3.311

References

https://github.com/greenshot/greenshot/commit/5dedd5c9f0a9896fa0af1d4980d875a48bf432cbPatch
https://github.com/greenshot/greenshot/releases/tag/v1.3.311Release Notes
https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmjExploit, Vendor Advisory
https://github.com/greenshot/greenshot/security/advisories/GHSA-7hvw-q8q5-gpmjExploit, Vendor Advisory

Timeline

Published: Jan 8, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-22035?

How severe is CVE-2026-22035?

CVE-2026-22035 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2026-22035?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-22035?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST