Buffer overflow in Cisco WebEx Network Recording Player and Webex Player - CVE-2021-1503

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Main Vulnerability Database Vulnerabilities #VU53750

Buffer overflow in Cisco WebEx Network Recording Player and Webex Player - CVE-2021-1503

Published: June 2, 2021


Vulnerability identifier: #VU53750
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-1503
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco WebEx Network Recording Player
Webex Player

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing ARF and WRF files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2021-1503

Install updates from vendor's website.

Sources