Executive brief
Adobe Acrobat Reader contains a heap-based buffer overflow vulnerability that allows attackers to execute arbitrary code with the privileges of the user running the application. Exploitation requires a victim to open a malicious PDF file, making social engineering the primary attack vector. Successful exploitation could lead to complete system compromise, theft of sensitive documents, or installation of malware.
Technical details
Acrobat Reader is vulnerable to a heap-based buffer overflow in PDF processing logic, likely in document parsing or rendering components. The vulnerability is triggered when processing specially crafted PDF files, allowing an attacker to overwrite heap memory and achieve arbitrary code execution in the context of the current user. Attack preconditions require user interaction: a victim must open the malicious PDF file. No network-based exploitation path exists. The vulnerability has not been observed exploited in the wild as of the advisory publication date, though patches should be applied promptly to mitigate risk.
Affected products
- Adobe Acrobat Reader <UNKNOWN>
Timeline
- 2026-09-08: disclosed
- 2026-09-08: advisory: Published as CVE-2026-81992