Cryptographic issues with In-Meeting Chat for some Zoom clients may allow a privileged…
Priority LOW 30CWE-325Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Cryptographic issues with In-Meeting Chat for some Zoom clients may allow a privileged user to conduct an information disclosure via network access.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00619 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 Clients | see references | — | No fix listed | CNA |
- Zoom Clients VendorZoom Video Communications, Inc. Affected see references Fixed in — No fix listed CNA
CPE configurations NVD · 15
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:android:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:iphone_os:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:linux:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:rooms:*:*:*:*:*:android:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:rooms:*:*:*:*:*:ipad_os:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:rooms:*:*:*:*:*:macos:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:rooms:*:*:*:*:*:windows:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:virtual_desktop_infrastructure:*:*:*:*:*:*:*:* | before 5.14.13; 5.15.0 to before 5.15.11 | Vulnerable | Zoom Video Communications, Inc. |
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:android:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:iphone_os:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:linux:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:rooms:*:*:*:*:*:android:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:rooms:*:*:*:*:*:ipad_os:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:rooms:*:*:*:*:*:macos:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:rooms:*:*:*:*:*:windows:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:virtual_desktop_infrastructure:*:*:*:*:*:*:*:* Versions before 5.14.13; 5.15.0 to before 5.15.11 Vulnerable ·Zoom Video Communications, Inc.
Show 5 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoom:zoom:*:*:*:*:*:android:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:zoom:*:*:*:*:*:iphone_os:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:zoom:*:*:*:*:*:linux:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:zoom:*:*:*:*:*:macos:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
| cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:* | before 5.16.0 | Vulnerable | Zoom Video Communications, Inc. |
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:android:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:iphone_os:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:linux:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:macos:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:* Versions before 5.16.0 Vulnerable ·Zoom Video Communications, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-39199
- 2026-10-03 Alias added: GHSA-cw6w-5w44-ccrq
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-2023-39199 · CVE Program
- CVE-2023-39199 · NVD
- FIRST EPSS
- GHSA-cw6w-5w44-ccrq · 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