# CVE-2023-21585: Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

CVE-2023-21585 is fixed in 2 products on 1 platform, first by Adobe Acrobat Reader DC 22.003.20310, released December 24, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-21585
- Priority: Routine
- CVSS: 5.5
- EPSS: 0.0247
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 18, 2023
- Weakness: CWE-125: Out-of-bounds Read (CWE-125)
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-21585

## Description

Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. 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 | 22.003.20310 | [Adobe Acrobat Reader DC 22.003.20310](https://patchblox.com/security/data/fix/windows-app/adobe.acrobat.reader.32-bit-22.003.20310.md) | Dec 24, 2022 |
| Windows apps | Adobe Acrobat Reader DC (64-bit) | 22.003.20310 | [Adobe Acrobat Reader DC (64-bit) 22.003.20310](https://patchblox.com/security/data/fix/windows-app/adobe.acrobat.reader.64-bit-22.003.20310.md) | Dec 24, 2022 |

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Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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