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CVE-2020-24427: Acrobat Reader DC Codec Input Validation Vulnerability Could Lead to Information Disclosure

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-05 · updated 2026-06-17
• Weakness: CWE-20

Description

Acrobat Reader versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.30175 (and earlier) are affected by an input validation vulnerability when decoding a crafted codec that could result in the 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.

Affected products

• Adobe Acrobat for Edge: through 20.001.30005
• Adobe Acrobat DC: through 17.011.30175; through 20.012.20048
• Adobe Acrobat Reader: through 20.001.30005
• Adobe Acrobat Reader: through 17.011.30175; through 20.012.20048

References

• https://helpx.adobe.com/security/products/acrobat/apsb20-67.html
• https://helpx.adobe.com/security/products/acrobat/apsb20-67.html

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