CVE-2026-88193

7.8High

Published 13 Oct 2026 · NVD status: Undergoing Analysis · AI triage by gemini-3.8-flash

7.8High

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-122

Impact

A local attacker with standard user access can elevate privileges to SYSTEM or administrator on the machine. They require prior local code execution or a valid user session.

Root cause

A heap-based buffer overflow in the Microsoft Scripting Engine corrupts adjacent heap memory during script processing.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fix & remediation

Install the official Windows security update from MSRC referencing CVE-2026-88193. No standalone configuration workaround is documented in the source advisory.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

Ad · In-content banner

NVD description

Heap-based buffer overflow in Microsoft Scripting Engine allows an authorized attacker to elevate privileges locally.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88193

Source: nvd.nist.gov/vuln/detail/CVE-2026-88193