CVE-2026-88207
7.5HighPublished 13 Oct 2026 · NVD status: Analyzed · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
- Impact
- Full C/I/A compromise
- Weakness
- CWE-122
Impact
Remote attackers can execute arbitrary code on the victim's system, but they require a user to open a malicious presentation file over the network. Execution runs with the privileges of the local user running PowerPoint.
Root cause
A heap-based buffer overflow in Microsoft Office PowerPoint triggers when parsing malformed presentation data.
Affected systems
Versions not listed — check the vendor advisory.
CVSS v3.1 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Fix & remediation
Install the security update released by Microsoft for the affected Office/PowerPoint installations via Windows Update or Microsoft Endpoint Configuration Manager. If patching cannot happen immediately, block or quarantine inbound PowerPoint files (.ppt, .pptx) at email gateways and web proxies.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.