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How the CVE Works:
CVE-2025-46788 is caused by improper certificate validation in Zoom Workplace for Linux versions before 6.4.13. An attacker exploiting this flaw can intercept communications via a man-in-the-middle (MITM) attack due to weak TLS certificate checks. The vulnerability allows unauthorized disclosure of sensitive data transmitted between Zoom clients and servers. Attackers could exploit weak or misconfigured certificate chains, leading to decrypted session data. The flaw stems from insufficient checks in the SSL/TLS handshake process, permitting connections even when certificate trust chains are invalid.
DailyCVE Form:
Platform: Zoom Workplace
Version: < 6.4.13
Vulnerability: Improper Certificate Validation
Severity: Medium
Date: 08/05/2025
Prediction: Patch expected by 09/15/2025
What Undercode Say:
Analytics:
openssl s_client -connect zoomhost:443 -verify_return_error nmap --script ssl-cert -p 443 <target>
How Exploit:
- MITM interception via rogue certificates
- Bypass TLS validation checks
- Decrypt session data
Protection from this CVE:
- Upgrade to Zoom Workplace ≥ 6.4.13
- Enforce strict certificate pinning
- Monitor for unusual traffic patterns
Impact:
- Unauthorized data exposure
- Session hijacking risks
- Privacy violations
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Sources:
Reported By: nvd.nist.gov
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