What’s Vulnerable › Vulnerabilities

CVE-2023-28602

• Severity: high (CVSS 7.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-13 · updated 2026-06-17
• Weakness: CWE-347

Description

Zoom for Windows clients prior to 5.13.5 contain an improper verification of cryptographic signature vulnerability. A malicious user may potentially downgrade Zoom Client components to previous versions.

Affected products

• Zoom Video Communications, Inc. Zoom Desktop Client for Windows: before 5.13.5 — fixed in 5.13.5

How to fix

Upgrade to a fixed version: Zoom Video Communications, Inc. Zoom Desktop Client for Windows 5.13.5. Check the vendor advisory for mitigations.

References

• https://explore.zoom.us/en/trust/security/security-bulletin/
• https://explore.zoom.us/en/trust/security/security-bulletin/

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