CVE-2025-62483: Zoom Information Disclosure Vulnerability – Update Now!

by

Overview

CVE-2025-62483 is a medium severity vulnerability affecting certain Zoom Clients before version 6.5.10. This vulnerability stems from the improper removal of sensitive information, potentially allowing an unauthenticated attacker with network access to disclose sensitive data. It’s crucial to understand the impact and take necessary steps to mitigate this risk.

Technical Details

The vulnerability lies in the way Zoom clients handle sensitive information during certain operations. Specifically, prior to version 6.5.10, the client does not adequately scrub or remove sensitive data from memory or temporary storage before or after the operation is complete. An attacker who can intercept network traffic related to the Zoom client might be able to extract this sensitive information. While the specifics of the exploited data are not fully detailed, the possibility of disclosing sensitive internal configurations or user information makes this a significant concern.

The attack vector requires network access, implying a man-in-the-middle (MITM) or similar network-based attack.

CVSS Analysis

The National Vulnerability Database (NVD) assigned CVE-2025-62483 a CVSS score of 5.3 (Medium). This score reflects the following characteristics:

  • CVSS Score: 5.3
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality Impact (C): Low (L)
  • Integrity Impact (I): None (N)
  • Availability Impact (A): None (N)

The ‘Network’ attack vector and ‘None’ privileges required highlight the potential for remote exploitation without the need for user credentials. The Low confidentiality impact suggests the disclosure is limited in scope, but still carries risk.

Possible Impact

Successful exploitation of CVE-2025-62483 could lead to:

  • Information Disclosure: An attacker might be able to obtain sensitive information such as internal configurations, user details, or other confidential data processed by the Zoom client.
  • Privacy Violation: Compromised user data could lead to privacy breaches and potential identity theft.
  • Further Attacks: Disclosed information could be used to facilitate more sophisticated attacks against the organization or individual users.

Mitigation and Patch Steps

The primary mitigation for CVE-2025-62483 is to update your Zoom Client to version 6.5.10 or later. Zoom has addressed this vulnerability in version 6.5.10. Here’s how to update:

  1. Check your current Zoom client version: Open the Zoom application, click on your profile picture, and select “Help” then “About Zoom.”
  2. Update Zoom: If your version is earlier than 6.5.10, either update via the Zoom application (usually found under “Check for Updates”) or download the latest version from the official Zoom download page.
  3. Verify the Update: After the update, confirm that you are running version 6.5.10 or later.

In addition to updating, consider these security best practices:

  • Network Monitoring: Implement network intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and prevent potential man-in-the-middle attacks.
  • Secure Network Connections: Use VPNs or other secure communication channels, especially when using public Wi-Fi networks.

References

Leave a Comment