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July 9, 2026
Question

Requesting patch deployment details to remediate high-severity vulnerability CVE-2026-45447 on endpoint currently running Adobe Acrobat Reader version 2026.001.21691.

  • July 9, 2026
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My endpoint security scanner is alerting on a high-severity heap use-after-free vulnerability, CVE-2026-45447, stemming from the embedded OpenSSL cryptographic library (PKCS7_verify() function) inside Adobe Acrobat. Our endpoint currently has Adobe Acrobat Reader Continuous Release (Version 2026.001.21691, 64-bit) installed. According to Adobe Security Bulletin APSB26-63, this update timeline addresses critical flaws, but we require verification on whether this build completely resolves the specific OpenSSL flaw, or if an additional out-of-band update is required. Please provide the exact target patch version alongside any command-line parameters needed to safely push the update across our environment.