Vendor / Project: Adobe Product: Acrobat and Reader Description: Acrobat Acrobat and Reader contain a heap-based buffer overflow vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user. Required Action: Apply updates per vendor instructions. Due Date: 2021-11-17 Ransomware Campaign Use: Unknown CWEs: CWE-122 Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-21017