DLL injection in Zoom Windows Clients
Priority LOW 33CWE-94Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-94.
Summary
Windows 32-bit versions of the Zoom Client for Meetings before 5.12.6 and Zoom Rooms for Conference Room before version 5.12.6 are susceptible to a DLL injection vulnerability. A local low-privileged user could exploit this vulnerability to run arbitrary code in the context of the Zoom client.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00531 45th percentileScored 2026-11-07
Fix Fixed Zoom Client for Meetings for Windows (32-bit) (Zoom Video Communications Inc): 5.12.6Zoom VDI Windows Meeting Client for Windows (32-bit) (Zoom Video Communications Inc): 5.12.6+1 more product
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Zoom Video Communications, Inc. | Zoom Client for Meetings for Windows (32-bit) | before 5.12.6 | 5.12.6 | Patch available | CNA |
| Zoom Video Communications, Inc. | Zoom VDI Windows Meeting Client for Windows (32-bit) | before 5.12.6 | 5.12.6 | Patch available | CNA |
| Zoom Video Communications, Inc. | Zoom Rooms for Conference Room for Windows (32-bit) | before 5.12.6 | 5.12.6 | Patch available | CNA |
- Zoom Client for Meetings for Windows (32-bit) VendorZoom Video Communications, Inc. Affected before 5.12.6 Fixed in 5.12.6 Patch available CNA
- Zoom VDI Windows Meeting Client for Windows (32-bit) VendorZoom Video Communications, Inc. Affected before 5.12.6 Fixed in 5.12.6 Patch available CNA
- Zoom Rooms for Conference Room for Windows (32-bit) VendorZoom Video Communications, Inc. Affected before 5.12.6 Fixed in 5.12.6 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:* | before 5.12.6 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:rooms:*:*:*:*:*:windows:*:* | before 5.12.6 | Vulnerable | Zoom Video Communications, Inc. |
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:* Versions before 5.12.6 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:rooms:*:*:*:*:*:windows:*:* Versions before 5.12.6 Vulnerable ·Zoom Video Communications, Inc.
Remediation
- Fix · CNA Zoom Client for Meetings for Windows (32-bit) (Zoom Video Communications Inc) Fixed in 5.12.6
- Fix · CNA Zoom VDI Windows Meeting Client for Windows (32-bit) (Zoom Video Communications Inc) Fixed in 5.12.6
- Fix · CNA Zoom Rooms for Conference Room for Windows (32-bit) (Zoom Video Communications Inc) Fixed in 5.12.6
Timeline
- 2026-10-02 Threatist record created from CVE-2022-28766
- 2026-10-03 Alias added: GHSA-c744-gxrc-9rh4
References
More Zoom Video Communications, Inc. Meetings vulnerabilities
- TI-2021-13217 Improper certificate validation in Zoom Client for Meetings for Windows CVSS 3.1CRITICAL 9.8
- TI-2021-13457 Buffer overflow in Zoom client and other products CVSS 3.1CRITICAL 9.8
- TI-2022-11393 Improper URL parsing in Zoom Clients CVSS 3.1CRITICAL 9.6
- TI-2022-07034 Improperly constrained session cookies in Zoom Client for Meetings CVSS 3.1CRITICAL 9.1
- TI-2022-07035 Update package downgrade in Zoom Client for Meetings for Windows CVSS 3.1HIGH 8.8
- TI-2022-07033 Improper XML Parsing in Zoom Client for Meetings CVSS 3.1HIGH 8.1
Sources
- CVE-2022-28766 · CVE Program
- CVE-2022-28766 · NVD
- FIRST EPSS
- GHSA-c744-gxrc-9rh4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences