# CVE-2025-64787: Acrobat Reader | Improper Verification of Cryptographic Signature (CWE-347)

CVE-2025-64787 is fixed in 2 products on 1 platform, first by Adobe Acrobat Reader DC 25.001.20997, released December 7, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-64787
- Priority: Routine
- CVSS: 3.3
- EPSS: 0.0045
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 9, 2025
- Weakness: CWE-347: Improper Verification of Cryptographic Signature (CWE-347)
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-64787

## Description

Acrobat Reader versions 24.001.30264, 20.005.30793, 25.001.20982, 24.001.30273, 20.005.30803 and earlier are affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass cryptographic protections and gain limited unauthorized write access. Exploitation of this issue requires user interaction with a cryptographic signature.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Adobe Acrobat Reader DC | 25.001.20997 | [Adobe Acrobat Reader DC 25.001.20997](https://patchblox.com/security/data/fix/windows-app/adobe.acrobat.reader.32-bit-25.001.20997.md) | Dec 7, 2025 |
| Windows apps | Adobe Acrobat Reader DC (64-bit) | 25.001.20997 | [Adobe Acrobat Reader DC (64-bit) 25.001.20997](https://patchblox.com/security/data/fix/windows-app/adobe.acrobat.reader.64-bit-25.001.20997.md) | Dec 7, 2025 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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