CVE-2025-10539: DeskTime Time Tracking App · Improper Certificate Validation
Affects DeskTime Time Tracking AppSource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium : upgrade to 1.3.674 when convenient.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.3.674
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 28 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade DeskTime Time Tracking App to 1.3.674.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DeskTimeDeskTime Time Tracking App | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, users should avoid using untrusted networks or ensure network traffic is protected by additional means such as VPNs.
Description
CVE-2025-10539 is a vulnerability in the DeskTime Time Tracking App prior to version 1.3.674 caused by improper TLS certificate validation. An attacker positioned in the network path between the client and update servers can deliver a malicious executable during an update request, resulting in user-level remote code execution. The vulnerability has a medium severity with a CVSS score of 4.8. There are no known exploits in the wild at this time.
References
- r.sec-consult.com/desktime (opens in a new tab)
- desktime.com/download (opens in a new tab)
- sec-consult.com/vulnerability-lab/advisory/missing-tls-certificate-validation-leading-to-rce-in-desktime-time-tracking-app/ (opens in a new tab)
- seclists.org/fulldisclosure/2026/Apr/20 (opens in a new tab)
- seclists.org/fulldisclosure/2026/Apr/21 (opens in a new tab)