Bulletin ID
Security Updates Available for Adobe Digital Editions | APSB21-26
|  | Date Published | Priority | 
|---|---|---|
| APSB20-26 | April 13, 2021    | 3 | 
Summary
Adobe has released a security update for Adobe Digital Editions. This update resolves a critical vulnerability that could result in arbitrary file system write.
Affected product versions
| Product | Version | Platform | 
|---|---|---|
| Adobe Digital Editions | 4.5.11.187245 and below    | MacOS | 
Solution
Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version:
| Product | Version | Platform | Priority | Availability | 
|---|---|---|---|---|
| Adobe Digital Editions | 4.5.11.187606 | MacOS | 3 | 
- Customers can download the update from the Adobe Digital Editions download page, or utilize the product’s update mechanism when prompted.
- For more information, please refer the release notes.
 
Vulnerability details
| Vulnerability Category | Vulnerability Impact | Severity | CVE Numbers | 
|---|---|---|---|
| Privilege Escalation | Arbitrary file system write | Critical | CVE-2021-21100 | 
Acknowledgments
Adobe would like to thank Qingyang Chen for reporting these issues and for working with Adobe to help protect our customers.