Adobe Security Bulletin

Security update available for Adobe Connect | APSB21-91

Bulletin ID

Date Published

Priority

APSB21-91

October 12, 2021

2

Summary

Adobe has released a security update for Adobe Connect. This update resolves critical and  important vulnerabilities. Successful exploitation could lead to arbitrary code execution.  
  

Affected product versions

Product

Version

Platform

Adobe Connect

11.2.3  and earlier versions            

All

Solution

Adobe categorizes these updates with the following  priority ratings and recommends users update their installation to the latest version.

Product

Version

Platform

Priority

Availability

Adobe Connect

11.3

All

2

Vulnerability details

Vulnerability Category

Vulnerability Impact

Severity

CVSS base score 

CVE Number

Deserialization of Untrusted Data (CWE-502

Arbitrary code execution

Critical  

9.8

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

CVE-2021-40719 

Cross-site Scripting (Reflected XSS)

(CWE-79)

Arbitrary code execution

Important  

6.4

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVE-2021-40721

Acknowledgments

Adobe would like to thank the following for reporting these issues and for working with Adobe to help protect our customers: 

  • Cyku (CVE-2021-40719)

  • celesian (CVE-2021-40721)

Revisions

October 27th, 2021: updated affected/fix versions


For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com.

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