CVE-2023-21608

Adobe Acrobat Reader

Published 18 Jan 2023 · updated 17 Jun 2026 · Analyzed

7.8 High · CVSS 3.1, adobe.com

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 10 Oct 2023, with a remediation deadline of 31 Oct 2023 for US federal agencies.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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 Use After Free vulnerability 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.

References

helpx.adobe.com/security/products/acrobat/apsb23-01.html · Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21608 · Third Party Advisory, US Government Resource