CVE-2021-21089: Adobe Acrobat Reader DC URI Parsing Out-Of-Bounds Read
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to locally escalate privileges in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-21089?
CVE-2021-21089 is classified as a moderate severity vulnerability.
How do I fix CVE-2021-21089?
To fix CVE-2021-21089, update Adobe Acrobat Reader DC to the latest version that addresses this vulnerability.
What types of attacks can exploit CVE-2021-21089?
CVE-2021-21089 can be exploited by unauthenticated attackers to escalate privileges locally.
What versions of Adobe Acrobat Reader DC are affected by CVE-2021-21089?
Affected versions include Acrobat Reader DC versions 2020.013.20074 and earlier, 2020.001.30018 and earlier, and 2017.011.30188 and earlier.
Is CVE-2021-21089 applicable to all operating systems?
CVE-2021-21089 primarily affects Adobe Acrobat Reader DC and is not applicable to operating systems like macOS and Windows in general.