CVE-2021-1527 MEDIUM

CVE-2021-1527: Cisco Webex Player Memory Corruption Vulnerability

Vendor Cisco
Product Cisco Webex Meetings
Weakness CWE-119
Published June 4, 2021
Last update November 7, 2024

CVSS base score

5.3/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

A vulnerability in Cisco Webex Player for Windows and MacOS could allow an attacker to cause the affected software to terminate or to gain access to memory state information that is related to the vulnerable application. The vulnerability is due to insufficient validation of values in Webex recording files that are stored in Webex Recording Format (WRF). An attacker could exploit this vulnerability by sending a malicious WRF file to a user as a link or email attachment and then persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to crash the affected software and view memory state information.

Key dates

02Disclosure timeline

June 4, 2021 CVE published
November 7, 2024 Record updated