CVE-2026-50679

Analyzed Analyzed - Analysis Complete

Heap-based Buffer Overflow in Windows Search Component

Publication date: 2026-07-14

Last updated on: 2026-07-22

Assigner: Microsoft Corporation

Description

Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-14

Last Modified

2026-07-22

Generated

2026-08-04

AI Q&A

2026-07-15

EPSS Evaluated

2026-08-02

NVD

CVE-2026-50679

EUVD

EUVD-2026-44135

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2025	to 10.0.26100.33158 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2525 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2525 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8875 (exc)
microsoft	windows_11_24h2	to 10.0.26100.8875 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8875 (exc)
microsoft	windows_11_25h2	to 10.0.26200.8875 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-122	A 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().

Attack-Flow Graph

Executive Summary

This is a heap-based buffer overflow in the Microsoft Windows Search Component. It allows an authorized attacker to elevate their privileges locally by exploiting a memory corruption issue.

Impact Analysis

An attacker could gain higher privileges on your system, potentially allowing them to install programs, view or delete data, or create new accounts with full user rights.

Compliance Impact

The vulnerability allows local privilege escalation via a heap-based buffer overflow in the Windows Search Component. This could enable unauthorized access to sensitive data or system functions, potentially violating confidentiality requirements in GDPR or HIPAA.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the heap-based buffer overflow in the Windows Search Component. Monitor Microsoft's advisory for updates and ensure all systems are updated promptly.

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