How severe is CVE-2026-22035?

CVE-2026-22035 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-22035 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22035?

CVE-2026-22035 affects Getgreenshot Greenshot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22035?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-22035 have an EU (EUVD) identifier?

Yes. CVE-2026-22035 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1663.

When was CVE-2026-22035 published?

CVE-2026-22035 was published on 2026-01-08 and last updated on 2026-06-17.

CVE-2026-22035

CVE-2026-22035 is a high-severity vulnerability in Getgreenshot Greenshot with a CVSS 3.x base score of 7.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.7)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1663
Weakness: CWE-78
Affected product: Getgreenshot Greenshot
Published: 2026-01-08
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-22035?: 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.
How severe is CVE-2026-22035?: CVE-2026-22035 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-22035 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22035?: CVE-2026-22035 affects Getgreenshot Greenshot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22035?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-22035 have an EU (EUVD) identifier?: Yes. CVE-2026-22035 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1663.
When was CVE-2026-22035 published?: CVE-2026-22035 was published on 2026-01-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:getgreenshot:greenshot:*:*:*:*:*:*:*:*

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