CVE-2025-62484
📋 TL;DR
A regular expression complexity vulnerability in Zoom Workplace Clients allows unauthenticated attackers to potentially escalate privileges via network access. This affects Zoom Workplace Clients before version 6.5.10. Attackers could exploit inefficient regex processing to gain elevated access.
💻 Affected Systems
- Zoom Workplace Client
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with administrative privileges, data exfiltration, and persistent backdoor installation.
Likely Case
Local privilege escalation allowing attackers to execute code with higher privileges than intended.
If Mitigated
Limited impact with proper network segmentation and endpoint protection blocking exploitation attempts.
🎯 Exploit Status
Exploitation requires crafting specific network traffic to trigger the inefficient regex processing.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.5.10 or later
Vendor Advisory: https://www.zoom.com/en/trust/security-bulletin/zsb-25048
Restart Required: Yes
Instructions:
1. Open Zoom Workplace Client. 2. Click your profile picture. 3. Select 'Check for Updates'. 4. Install version 6.5.10 or later. 5. Restart the application.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Zoom clients from untrusted networks
Endpoint Protection
allEnable application control and behavior monitoring to detect exploitation attempts
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Zoom clients from untrusted networks
- Deploy endpoint detection and response (EDR) solutions with behavior-based detection
🔍 How to Verify
Check if Vulnerable:
Check Zoom version in Settings > About. If version is below 6.5.10, system is vulnerable.Check Version:
On Windows: Get-ItemProperty 'HKLM:\SOFTWARE\Zoom\' | Select-Object Version. On macOS: /Applications/zoom.us.app/Contents/Info.plist | grep -A1 CFBundleShortVersionStringVerify Fix Applied:
Confirm Zoom version is 6.5.10 or higher in Settings > About.📡 Detection & Monitoring
Log Indicators:
- Unusual process creation from Zoom client
- Failed privilege escalation attempts in system logs
Network Indicators:
- Unusual network traffic patterns to/from Zoom clients
- Malformed network packets targeting Zoom ports
SIEM Query:
source="zoom" AND (event_type="process_creation" OR event_type="privilege_escalation")