CVE-2025-58135
📋 TL;DR
This vulnerability in Zoom Workplace Clients for Windows allows unauthenticated attackers to access sensitive information through network connections. It affects Windows users running vulnerable versions of Zoom Workplace software. The issue stems from improper enforcement of security actions.
💻 Affected Systems
- Zoom Workplace Client for Windows
📦 What is this software?
Rooms by Zoom
⚠️ Risk & Real-World Impact
Worst Case
Unauthenticated remote attacker could access sensitive user data, meeting information, or system details from vulnerable Zoom clients.
Likely Case
Information disclosure of non-critical system or application data to network-adjacent attackers.
If Mitigated
Minimal impact with proper network segmentation and updated clients.
🎯 Exploit Status
Exploitation requires network access to vulnerable client. No authentication needed per CVE description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Zoom security bulletin ZSB-25036 for specific patched versions
Vendor Advisory: https://www.zoom.com/en/trust/security-bulletin/ZSB-25036
Restart Required: No
Instructions:
1. Open Zoom Workplace client 2. Click profile icon 3. Select 'Check for Updates' 4. Install any available updates 5. Alternatively, download latest version from Zoom website
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Zoom clients to trusted networks only
Firewall Rules
allBlock unnecessary inbound connections to Zoom client ports
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Zoom clients
- Use host-based firewalls to restrict inbound connections to Zoom processes
🔍 How to Verify
Check if Vulnerable:
Check Zoom client version against patched versions in Zoom security bulletin ZSB-25036Check Version:
In Zoom client: Click profile icon → About → Check version numberVerify Fix Applied:
Verify Zoom client version is updated to patched version listed in advisory📡 Detection & Monitoring
Log Indicators:
- Unusual network connections to Zoom client process
- Multiple failed authentication attempts followed by successful data access
Network Indicators:
- Unexpected inbound connections to Zoom client ports
- Unusual data exfiltration patterns from Zoom processes
SIEM Query:
process:zoom.exe AND network_inbound:true AND NOT src_ip IN [trusted_networks]