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CVE-2026-34621 — Actively Exploited: Acrobat and Reader (Adobe)

Adobe Acrobat and Reader contain a prototype pollution vulnerability that allows for arbitrary code execution.

CVE IDCVE-2026-34621
VendorAdobe
ProductAcrobat and Reader
Vulnerability nameAdobe Acrobat and Reader Prototype Pollution Vulnerability
Date added2026-04-13
Remediation due2026-04-27
Known ransomware useUnknown
Required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
DescriptionAdobe Acrobat and Reader contain a prototype pollution vulnerability that allows for arbitrary code execution.
SourceCISA Known Exploited Vulnerabilities

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