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3cxApplication

CVE-2023-29059

HIGH · 7.8 CVSS v3.1 Published 2023-03-30
No fix yet
No fix has been published. The vendor has not shipped a fixed release or patch. You remain exposed.
See remediation →
80/100
Remediation priority · High
Public exploit Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
3cxApplication
Affected:= 18.11.1213= 18.12.402= 18.12.407= 18.12.416

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Recommended fix High confidence

3CX DesktopApp version 18.12.423 or later (post-March 2023 clean release)

  1. 1. Immediately uninstall the affected 3CX DesktopApp versions (18.11.1213, 18.12.402, 18.12.407, 18.12.416) from all Windows and macOS systems.
  2. 2. Quarantine or analyze the affected systems for indicators of compromise, as the malicious code was actively exploited in the wild.
  3. 3. Download the latest 3CX DesktopApp version from the official 3CX website (www.3cx.com) or your 3CX management console.
  4. 4. Install the updated, clean version of 3CX DesktopApp on all affected endpoints.
  5. 5. Review 3CX administration logs and network traffic for signs of malicious activity during the period the compromised version was in use.
  6. 6. Consider rotating credentials and API keys that may have been exposed through the compromised application.
Caveat Standard desktop client upgrade; ensure compatibility with your 3CX phone system version before deployment

Generated from the published advisory — verify against the referenced sources before acting.

No vendor fix exists 3cx has not published a patch for this.

There is no version to upgrade to and no patch to apply. Every affected install stays exposed until the vendor ships a fix — or somebody else builds one.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-29059 in production — separate from our analysis above.

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data