airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the…
Priority MEDIUM 42CWE-330Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 · CISA ADP. Fix status from CNA.
Summary
airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption. NOTE: the vendor states that this IV is used only within unreachable code
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01563 75th 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
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zoom:meetings:4.6.11:*:*:*:*:windows:*:* | 4.6.11 | Vulnerable | Zoom Video Communications, Inc. |
- cpe:2.3:a:zoom:meetings:4.6.11:*:*:*:*:windows:*:* Versions 4.6.11 Vulnerable ·Zoom Video Communications, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-11877
- 2026-10-03 Alias added: GHSA-23m4-p6hq-h69h
References
Exploit 1
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-2020-11877 · CVE Program
- CVE-2020-11877 · NVD
- FIRST EPSS
- GHSA-23m4-p6hq-h69h · 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