Authentication bypass by spoofing in Zoom
Priority MEDIUM 48CWE-290Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-290.
Summary
Zoom clients on Windows (before version 4.1.34814.1119), Mac OS (before version 4.1.34801.1116), and Linux (2.4.129780.0915 and below) are vulnerable to unauthorized message processing. A remote unauthenticated attacker can spoof UDP messages from a meeting attendee or Zoom server in order to invoke functionality in the target client. This allows the attacker to remove attendees from meetings, spoof messages from users, or hijack shared screens.
Why it matters now
EPSS 0.03487 89th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Zoom Video Communications, Inc. | Zoom | Zoom on Windows before version 4.1.34814.1119, Zoom on Mac OS before version 4.1.34801.1116, Zoom on Linux version 2.4.129780.0915 and below. | — | No fix listed | CNA |
- Zoom VendorZoom Video Communications, Inc. Affected Zoom on Windows before version 4.1.34814.1119, Zoom on Mac OS before version 4.1.34801.1116, Zoom on Linux version 2.4.129780.0915 and below. Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoom:zoom:*:*:*:*:*:linux:*:* | up to 2.4.129780.0915 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:zoom:*:*:*:*:*:mac_os_x:*:* | before 4.1.34801.1116 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:* | before 4.1.34814.1119 | Vulnerable | Zoom Video Communications, Inc. |
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:linux:*:* Versions up to 2.4.129780.0915 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:mac_os_x:*:* Versions before 4.1.34801.1116 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:* Versions before 4.1.34814.1119 Vulnerable ·Zoom Video Communications, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15715
- 2026-10-03 Alias added: GHSA-gf85-hm2v-6785
References
More Zoom Video Communications, Inc. Zoom vulnerabilities
- TI-2017-11048 The ZoomLauncher binary in the Zoom client for Linux before 2.0.115900.1201 does not… CVSS 3.1HIGH 8.8
- TI-2017-11047 Stack-based buffer overflow in the ZoomLauncher binary in the Zoom client for Linux… CVSS 3.1HIGH 8.8
- TI-2020-04976 Path traversal in Zoom CVSS 3.1CRITICAL 9.8
- TI-2024-16222 Zoom Desktop Client for Windows, Zoom VDI Client for Windows, and Zoom Meeting SDK for… CVSS 3.1CRITICAL 9.8
- TI-2023-20371 Injection in Zoom Desktop Client for Windows and Zoom VDI Client CVSS 3.1CRITICAL 9.8
- TI-2023-18372 Path traversal in Zoom Desktop Client for Windows CVSS 3.1CRITICAL 9.8
Sources
- CVE-2018-15715 · CVE Program
- CVE-2018-15715 · NVD
- FIRST EPSS
- GHSA-gf85-hm2v-6785 · GitHub Advisory Database · CC BY 4.0
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