// For flags

CVE-2021-1526

Cisco Webex Player Memory Corruption Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

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.

Una vulnerabilidad en Cisco Webex Player para Windows y MacOS podría permitir a un atacante ejecutar código arbitrario en un sistema afectado. Esta vulnerabilidad es debido a una comprobación insuficiente de los valores en los archivos de grabación de Webex que están en Webex Recording Format (WRF). Un atacante podría explotar esta vulnerabilidad mediante el envío de un usuario a abrir un archivo WRF malicioso mediante un enlace o un archivo adjunto de correo electrónico y convenciendo al usuario de que abra el archivo con el software afectado en el sistema local. Una explotación con éxito podría permitir al atacante ejecutar código arbitrario en el sistema afectado con los privilegios del usuario objetivo

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-06-04 CVE Published
  • 2024-05-08 EPSS Updated
  • 2024-11-07 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Webex Player
Search vendor "Cisco" for product "Webex Player"
 < 41.5
Search vendor "Cisco" for product "Webex Player" and version " < 41.5"
macos
Affected
Cisco
Search vendor "Cisco"
 Webex Player
Search vendor "Cisco" for product "Webex Player"
 < 41.5
Search vendor "Cisco" for product "Webex Player" and version " < 41.5"
windows
Affected