How severe is CVE-2023-34634?

CVE-2023-34634 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-34634 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34634?

CVE-2023-34634 affects Getgreenshot Greenshot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34634?

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.

When was CVE-2023-34634 published?

CVE-2023-34634 was published on 2023-08-01 and last updated on 2026-06-17.

CVE-2023-34634

CVE-2023-34634 is a high-severity vulnerability in Getgreenshot Greenshot with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Getgreenshot Greenshot
Published: 2023-08-01
Last modified: 2026-06-17

Description

Greenshot 1.2.10 and below allows arbitrary code execution because .NET content is insecurely deserialized when a .greenshot file is opened.

Frequently asked questions

What is CVE-2023-34634?: Greenshot 1.2.10 and below allows arbitrary code execution because .NET content is insecurely deserialized when a .greenshot file is opened.
How severe is CVE-2023-34634?: CVE-2023-34634 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-34634 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34634?: CVE-2023-34634 affects Getgreenshot Greenshot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34634?: 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.
When was CVE-2023-34634 published?: CVE-2023-34634 was published on 2023-08-01 and last updated on 2026-06-17.

References

Affected products (1)

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

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