CVE-2023-39520

Name: CVE-2023-39520
Creator: NVD / NIST
Published: 2023-08-07T20:15:09.987+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2023-39520 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Cryptomator encrypts data being stored on cloud infrastructure. The MSI installer provided on the homepage for Cryptomator version 1.9.2 allows local privilege escalation for low privileged users, via the `repair` function. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

Cryptomator encrypts data being stored on cloud infrastructure. The MSI installer provided on the homepage for Cryptomator version 1.9.2 allows local privilege escalation for low privileged users, via the `repair` function. The problem occurs as the repair function of the MSI is spawning an SYSTEM Powershell without the `-NoProfile` parameter. Therefore the profile of the user starting the repair will be loaded. Version 1.9.3 contains a fix for this issue. Adding a `-NoProfile` to the powershell is a possible workaround.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.31%

22.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Cryptomator	Cryptomator	< 1.9.3

References

https://github.com/cryptomator/cryptomator/commit/727c32ad50c3901a6144a11cf984a3b7ebcf8b2bPatch
https://github.com/cryptomator/cryptomator/releases/download/1.9.2/Cryptomator-1.9.2-x64.msiProduct
https://github.com/cryptomator/cryptomator/releases/tag/1.9.3Release Notes
https://github.com/cryptomator/cryptomator/security/advisories/GHSA-62gx-54j7-mjh3Exploit, Mitigation, Vendor Advisory
https://github.com/cryptomator/cryptomator/commit/727c32ad50c3901a6144a11cf984a3b7ebcf8b2bPatch
https://github.com/cryptomator/cryptomator/releases/download/1.9.2/Cryptomator-1.9.2-x64.msiProduct
https://github.com/cryptomator/cryptomator/releases/tag/1.9.3Release Notes
https://github.com/cryptomator/cryptomator/security/advisories/GHSA-62gx-54j7-mjh3Exploit, Mitigation, Vendor Advisory

Timeline

Published: Aug 7, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-39520?

How severe is CVE-2023-39520?

CVE-2023-39520 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39520?

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-2023-39520?

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

Scan your code now

Source: NVD / NIST