CVE-2025-10539

Name: CVE-2025-10539
Creator: NVD / NIST
Published: 2026-04-28T09:16:16.187+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2025-10539 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Due to improper TLS certificate validation in the DeskTime Time Tracking App before version 1.3.674, attackers who can position themselves in the network path between the client and the DeskTime update servers can return a malicious executable in response to an update request. This allows the attacker to achieve user-level remote code execution on the affected client.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

Due to improper TLS certificate validation in the DeskTime Time Tracking App before version 1.3.674, attackers who can position themselves in the network path between the client and the DeskTime update servers can return a malicious executable in response to an update request. This allows the attacker to achieve user-level remote code execution on the affected client.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.18%

7.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Draugiemgroup	Desktime Time Tracking	< 1.3.674

References

https://desktime.com/downloadProduct
https://r.sec-consult.com/desktimeThird Party Advisory
http://seclists.org/fulldisclosure/2026/Apr/20Exploit, Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2026/Apr/21Exploit, Mailing List, Third Party Advisory
https://sec-consult.com/vulnerability-lab/advisory/missing-tls-certificate-validation-leading-to-rce-in-desktime-time-tracking-app/Third Party Advisory

Timeline

Published: Apr 28, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-10539?

How severe is CVE-2025-10539?

CVE-2025-10539 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2025-10539?

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-2025-10539?

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

Scan your code now

Source: NVD / NIST