CVE-2021-21089: Adobe Acrobat Reader DC URI Parsing Out-Of-Bounds Read
First published: Tue Feb 09 2021(Updated: )
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.
Credit: psirt@adobe.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Adobe Acrobat | >=20.006.20034<=20.013.20074 | |
| Adobe Acrobat Reader | >=20.006.20034<=20.013.20074 | |
| Apple iOS and macOS | ||
| Microsoft Windows | ||
| Adobe Acrobat | >=20.001.30005<=20.001.30018 | |
| Adobe Acrobat Reader | >=20.001.30005<=20.001.30018 | |
| Adobe Acrobat | >=17.011.30158<=17.011.30188 | |
| Adobe Acrobat Reader | >=17.011.30158<=17.011.30188 |
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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.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/severity
- agent/author
- agent/title
- agent/last-modified-date
- agent/references
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/adobe
- canonical/adobe acrobat
- version/adobe acrobat/20.006.20034
- version/adobe acrobat/20.013.20074
- canonical/adobe acrobat reader
- version/adobe acrobat reader/20.006.20034
- version/adobe acrobat reader/20.013.20074
- vendor/apple
- canonical/apple ios and macos
- vendor/microsoft
- canonical/microsoft windows
- version/adobe acrobat/20.001.30005
- version/adobe acrobat/20.001.30018
- version/adobe acrobat reader/20.001.30005
- version/adobe acrobat reader/20.001.30018
- version/adobe acrobat/17.011.30158
- version/adobe acrobat/17.011.30188
- version/adobe acrobat reader/17.011.30158
- version/adobe acrobat reader/17.011.30188