# CVE-2021-44710: Adobe Acrobat Reader Use-after-free could lead to Arbitrary code execution

CVE-2021-44710 is fixed in 2 products on 1 platform, first by Adobe Acrobat Reader DC 21.011.20039, released December 24, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-44710
- Priority: High
- CVSS: 7.8
- EPSS: 0.1138
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 14, 2022
- Weakness: CWE-416: Use After Free (CWE-416)
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-44710

## Description

Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Adobe Acrobat Reader DC | 21.011.20039 | [Adobe Acrobat Reader DC 21.011.20039](https://patchblox.com/security/data/fix/windows-app/adobe.acrobat.reader.32-bit-21.011.20039.md) | Dec 24, 2021 |
| Windows apps | Adobe Acrobat Reader DC (64-bit) | 21.011.20039 | [Adobe Acrobat Reader DC (64-bit) 21.011.20039](https://patchblox.com/security/data/fix/windows-app/adobe.acrobat.reader.64-bit-21.011.20039.md) | Dec 24, 2021 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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