// For flags

CVE-2021-1527

Cisco Webex Player Memory Corruption Vulnerability

Severity Score

6.1
*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 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.

Una vulnerabilidad en Cisco Webex Player para Windows y MacOS, podría permitir a un atacante causar la finalización del software afectado o conseguir acceso a la información de estado de la memoria relacionada con la aplicación vulnerable. La vulnerabilidad es debido a una comprobación insuficiente de los valores en los archivos de grabación de Webex que son almacenados en Webex Recording Format (WRF). Un atacante podría explotar esta vulnerabilidad mediante el envío de un archivo WRF malicioso a un usuario como un enlace o un adjunto de correo electrónico y luego persuadir al usuario para que abra el archivo con el software afectado en el sistema local. Una explotación con éxito podría permitir al atacante bloquear el software afectado y visualizar la información del estado de la memoria

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-06-04 CVE Published
  • 2024-02-16 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