PT-2026-70500 · Microsoft · Http.Sys+1

CVE-2026-62739

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Published

2026-08-11

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Updated

2026-08-16

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Windows HTTP.sys (affected versions not specified)
Description A heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally. A heap-based buffer overflow occurs when a program writes more data to a heap memory buffer than it can hold, potentially leading to memory corruption.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-62739

Affected Products

Http.Sys
Windows