Integer Underflow Vulnerability in Adobe Acrobat Reader

CVE-2026-81977

What is CVE-2026-81977?

Adobe Acrobat Reader is susceptible to an integer underflow vulnerability that can potentially lead to the disclosure of sensitive memory information. This flaw requires user interaction, as an attacker must convince the victim to open a specially crafted malicious file. Once opened, this vulnerability could allow an attacker to access confidential data within the application. Users are urged to exercise caution and implement security best practices to mitigate potential risks.

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