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6.1
CVE-2021-1527: 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 ...
CVE-2021-1527 · published 5 years ago
Summary
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 recordin...
What to do
- Update cisco webex_player to version 41.5 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| cisco | webex_player |
< 41.5 cpe:2.3:a:cisco:webex_player:*:*:*:*:*:macos:*:* |
Original advisory text
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 ...
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.
References
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-119Buffer Overflow
CWE-787Out-of-bounds Write
Timeline
Published4 Jun 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-1527 · NVD
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