CVE-2025-46785 Overview
Buffer over-read in some Zoom Workplace Apps for Windows may allow an authenticated user to conduct a denial of service via network access.
Critical Impact
This vulnerability can lead to significant disruption in service availability for users who rely on these Zoom applications for essential communication.
Affected Products
- Zoom Meeting Software Development Kit
- Zoom Rooms
- Zoom Rooms Controller
Discovery Timeline
- Not Available - Vulnerability discovered by Not Available
- Not Available - Responsible disclosure to Zoom
- Not Available - CVE CVE-2025-46785 assigned
- Not Available - Zoom releases security patch
- 2025-05-14 - CVE CVE-2025-46785 published to NVD
- 2025-08-19 - Last updated in NVD database
Technical Details for CVE-2025-46785
Vulnerability Analysis
The buffer over-read occurs due to improper handling of memory in several Zoom Workplace Apps for Windows. This flaw allows an authenticated user to leverage network access to cause a denial of service through crafted data packets that exceed the buffer size.
Root Cause
The root cause of this vulnerability is inadequate boundary checking during data processing, leading to a buffer over-read condition.
Attack Vector
The attack is conducted over the network, exploiting the buffer over-read vulnerability to disrupt service.
#include <string.h>
void vulnerableFunction(char *input) {
char buffer[10];
strcpy(buffer, input);
}
// Usage of this function with input > 10 bytes leads to buffer over-read.
Detection Methods for CVE-2025-46785
Indicators of Compromise
- Unexpected application crashes
- Unresponsive Zoom services
- Abnormal network traffic patterns
Detection Strategies
Monitoring for patterns of malformed packets can help detect attempts to exploit this vulnerability. Implement network-based intrusion detection systems (NIDS) to flag any unusual packet sizes or types.
Monitoring Recommendations
Regularly monitor application logs for any signs of abrupt shutdowns or repeated service interruptions. Implement log analysis tools to automate the detection of these indicators.
How to Mitigate CVE-2025-46785
Immediate Actions Required
- Disable unnecessary network services to limit exposure
- Increase logging verbosity for application activity
- Implement additional input validation in network handling components
Patch Information
Check Zoom's security advisory for the latest patch details and apply immediately.
Workarounds
Consider employing application-level firewalls to restrict the types of network packets that can be processed by the application.
# Example IP tables configuration
iptables -A INPUT -p tcp --dport 12345 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
