Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulnerabilities (cisco-sa-webex-nbr-NOS6FQ24)

High Nessus Plugin ID 142880

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 6.7


The remote device is missing a vendor-supplied security patch.


According to its self-reported version, Cisco Webex Network Recording Player for Windows and Cisco Webex player for Windows are affected by multiple arbitrary code execution vulnerabilities due to insufficient validation of certain elements of a Webex recording that is stored in the Advanced Recording Format (ARF) or Webex Recording Format (WRF). An unauthenticated attacker can exploit these, by sending a user a malicious ARF or WRF file through a link or email attachment and persuading the user to open the file, in order to execute arbitrary code on the affected system with the privileges of the targeted user.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.


Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvu53451, CSCvu53534, CSCvu55885, CSCvu55901, CSCvu59610

See Also

Plugin Details

Severity: High

ID: 142880

File Name: cisco-sa-webex-nbr-NOS6FQ24.nasl

Version: 1.5

Type: local

Family: CISCO

Published: 2020/11/13

Updated: 2020/12/04

Dependencies: 58620

Risk Information

Risk Factor: High

VPR Score: 6.7

CVSS Score Source: CVE-2020-3604

CVSS v2.0

Base Score: 9.3

Temporal Score: 6.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:webex_network_recording_player, cpe:/a:cisco:webex_player

Required KB Items: installed_sw/WebEx ARF/WRF Player

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/11/04

Vulnerability Publication Date: 2020/11/04

Reference Information

CVE: CVE-2020-3573, CVE-2020-3603, CVE-2020-3604