CVE-2023-29059 — 3CX DesktopApp through 18
3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416
Published
2023-03-30T00:00:00.000Z
Last modified
2025-05-05T16:01:52.444Z
01What is this vulnerability?
3CX DesktopApp through 18.12.416 has embedded malicious code, as exploited in the wild in March 2023. This affects versions 18.12.407 and 18.12.416 of the 3CX DesktopApp Electron Windows application shipped in Update 7, and versions 18.11.1213, 18.12.402, 18.12.407, and 18.12.416 of the 3CX DesktopApp Electron macOS application.
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2023-03-30T00:00:00.000Z
- Last modified: 2025-05-05T16:01:52.444Z
09References
- cwe.mitre.org — https://cwe.mitre.org/data/definitions/506.html
- www.3cx.com — https://www.3cx.com/blog/news/desktopapp-security-alert/
- www.fortinet.com — https://www.fortinet.com/blog/threat-research/3cx-desktop-app-compromised
- www.huntress.com — https://www.huntress.com/blog/3cx-voip-software-compromise-supply-chain-threats
- www.crowdstrike.com — https://www.crowdstrike.com/blog/crowdstrike-detects-and-prevents-active-intrusi…
- news.sophos.com — https://news.sophos.com/en-us/2023/03/29/3cx-dll-sideloading-attack/
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