CVE-2025-10539

Summary

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 Software

Weaknesses

• CWE-295: CWE-295 Improper certificate validation
• CWE-296: CWE-296 Improper following of a certificate's chain of trust
• CWE-494: CWE-494 Download of code without integrity check

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://sec-consult.com/vulnerability-lab/advisory/missing-tls-certificate-validation-leading-to-rce-in-desktime-time-tracking-app/

CVE Program Container

Additional References

• http://seclists.org/fulldisclosure/2026/Apr/20
• http://seclists.org/fulldisclosure/2026/Apr/21

References

• https://r.sec-consult.com/desktime
• https://desktime.com/download

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