# CVE-2025-10539

## Summary

- **CVE ID:** CVE-2025-10539
- **Severity:** MEDIUM
- **CVSS Score:** 4.8 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)
- **CWE:** CWE-295, CWE-296, CWE-494
- **Published:** Apr 28, 2026
- **Last Modified:** Apr 29, 2026

## 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.

## Affected Products

- DeskTime — DeskTime Time Tracking App (0)

## References

- [CNA](https://r.sec-consult.com/desktime)
- [CNA](https://desktime.com/download)
- [CISA-ADP](https://sec-consult.com/vulnerability-lab/advisory/missing-tls-certificate-validation-leading-to-rce-in-desktime-time-tracking-app/)
- [CVE](http://seclists.org/fulldisclosure/2026/Apr/20)
- [CVE](http://seclists.org/fulldisclosure/2026/Apr/21)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.18%
- **EPSS Percentile:** 7.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._