CVE-2026-83921
HighCVSS 7.0Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker could exploit this vulnerability to gain elevated privileges and take control of the system.
Recommendation
Apply the latest Windows security updates.
Other vulnerabilities in Microsoft Windows Search
See all- CVE-2017-11772High
The Microsoft Windows Search component on various versions of the operating system allows information disclosure due to improper handling of objects in memory. This vulnerability affects multiple versions of Windows, including Windows Server 2008, Windows 7, Windows 8.1, Windows 10, and Windows Server 2016.
- CVE-2026-105010Critical
Use after free in Microsoft Windows Search Component allows an unauthorized attacker to elevate privileges over a network.
- CVE-2017-11771Critical
The Windows Search component on various versions of Microsoft Windows allows remote code execution due to improper handling of DNS responses.
- CVE-2026-83920High
Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
- CVE-2026-69507Medium
A vulnerability in the Windows Search component allows insertion of sensitive information into an externally accessible file or directory. An authorized attacker could exploit this to disclose information over a network.
- CVE-2026-69305High
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges over a network.
Original NVD description (English source)
Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS