CVE-2026-8356

A flaw was found in LibreOffice. This vulnerability, a stack buffer overflow, occurs when processing specially crafted legacy PowerPoint (PPT) files. An attacker could exploit this by convincing a user to open a malicious document, which may lead to a denial of service (DoS) due to the application crashing. This primarily affects desktop users who handle untrusted files.

This Moderate impact denial of service vulnerability in LibreOffice is due to a stack buffer overflow when parsing specially crafted legacy PowerPoint (PPT) files. Successful exploitation requires user interaction, as an attacker must persuade a user to open a malicious document. The flaw primarily affects desktop users who process untrusted files.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Users should exercise caution when opening untrusted or suspicious legacy PowerPoint (PPT) files. Avoid opening documents from unknown sources to prevent potential denial of service attacks. If possible, process untrusted documents in a sandboxed environment.