VulnerabilityThe Hacker News
8.6 — CRITICAL
Adobe Patches Actively Exploited Acrobat Reader Flaw CVE-2026-34621
Adobe has released emergency updates to fix a critical security flaw in Acrobat Reader that has come under active exploitation in the wild. The vulnerability, assigned the CVE identifier CVE-2026-34621, carries a CVSS score of 8.6 out of 10.0. Successful exploitation of the flaw could allow an attacker to run malicious code on affected installations. It has been described as
🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview
Adobe has released emergency updates to fix a critical security flaw in Acrobat Reader, CVE-2026-34621, which is being actively exploited in the wild, allowing attackers to run malicious code on affected installations.
⚙️Technical Details
CVEs
CVE-2026-34621
Affected Systems
Adobe AcrobatApple MacOSMicrosoft Windows
Attack Vectors
AV:L/AC:L
💥Impact Assessment
Severity: c
Who Is at Risk
Users of Adobe Acrobat Reader versions 24.001.30356, 26.001.21367 and earlier
🛡️Recommended Actions
1Immediately update to the latest version of Adobe Acrobat Reader
2Disable macros in Adobe Acrobat Reader until further notice
3Monitor system logs for suspicious activity related to Adobe Acrobat Reader
📦Affected Products
Adobe AcrobatAdobe Acrobat DcAdobe Acrobat Reader DcApple MacosMicrosoft WindowsApple MacOS
🔐NVD Verified DataVERIFIED
CVE-2026-34621 ↗CVSS 8.6 — HIGH
Attack Vector
LOCAL
Complexity
LOW
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HWeaknesses
CWE-1321
Affected Products (CPE)
Adobe AcrobatAdobe Acrobat DcAdobe Acrobat Reader DcApple MacosMicrosoft Windows
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