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Tool Directory

CVE-2023-34634

HighPublished

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

Published: Aug 1, 2023
Updated: Oct 23, 2024
Assigning CNA: mitre
Evidence observed: Jul 28, 2023

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

7.6%

Low · next 30 days

Percentile: 94.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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

Sources

CVE-2023-34634PoC
Python rewrite of the POC for CVE-2023-34634
GreenShot 1.2.10 - Insecure Deserialization Arbitrary Code ExecutionExploit
p4r4bellum · windows · Jul 28, 2023

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