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CVE-2023-21586: Acrobat Reader | NULL Pointer Dereference (CWE-476)

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-19 · updated 2026-06-17
• Weakness: CWE-476

Description

Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by a NULL Pointer Dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected products

• Adobe Acrobat for Edge: from 20.001.30005 through 20.005.30418
• Adobe Acrobat DC: from 15.008.20082 through 22.003.20282; from 15.008.20082 through 22.003.20281
• Adobe Acrobat Reader: from 20.001.30005 through 20.005.30418
• Adobe Acrobat Reader: from 15.008.20082 through 22.003.20282; from 15.008.20082 through 22.003.20281

References

• https://helpx.adobe.com/security/products/acrobat/apsb23-01.html

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