CVE-2026-96856: microsoft windows 10 version 1607 Heap-based Buffer Overflow

Vulnerability summary

CVE-2026-96856 is a high (CVSS 7.8) Heap-based Buffer Overflow vulnerability in microsoft windows 10 version 1607. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.2% of scored vulnerabilities.

Timeline

1. 13-10-2026
   PublishedVulnerability first disclosed.
2. 19-10-2026
   Last modifiedVulnerability information updated.

Description

Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().