Vulnerability · Published Jun 4, 2021 · Assigned by cisco

CVE-2021-1526Cisco Webex Player Memory Corruption Vulnerability

High 7.8

In plain English

A high-severity memory corruption in Cisco Webex Meetings from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)1.0%top 36.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in Cisco Webex Player for Windows and MacOS could allow an attacker to execute arbitrary code on an affected system. This vulnerability is due to insufficient validation of values in Webex recording files that are in Webex Recording Format (WRF). An attacker could exploit this vulnerability by sending a user a malicious WRF file through a link or email attachment and persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to execute arbitrary code on the affected system with the privileges of the targeted user.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Webex Meetings	n/a

Weakness: CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

20210602 Cisco Webex Player Memory Corruption Vulnerability vendor-advisory, x_refsource_CISCO