CVE-2026-22035 | BDVDB-2026-309752 Detail

greenshotgreenshot

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References#

Exploit#

No public exploit known

History#

Version 12026-01-08Record published in the CVE List.
Version 22026-02-26Most recent update recorded in the CVE List.

Published

Published: 2026-01-08
Last modified: 2026-02-26

Vendor information

Vendor: greenshot
Product: greenshot

All greenshot vulnerabilities

Score

7.8 High

EPSS

1.0%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 64.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Command Injection

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.3.311
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.8 High

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

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Privileges Required	None
User Interaction	Required
Scope	Changed
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).