CVE-2026-83847
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
Heap-based buffer overflow in Microsoft Account allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker could exploit the overflow to execute code with elevated privileges, potentially leading to system takeover.
Recommendation
Apply the latest Windows security updates.
Other vulnerabilities in Microsoft Account
See all- CVE-2026-56165Critical
Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute code over a network.
- CVE-2026-85329High
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Account allows an authorized attacker to elevate privileges locally.
- CVE-2026-68852Medium
A vulnerability in Microsoft Account involves the use of an uninitialized resource. An authorized attacker could exploit this to disclose information locally.
- CVE-2026-68850High
Heap-based buffer overflow in Microsoft Account allows an authorized attacker to elevate privileges locally.
Original NVD description (English source)
Heap-based buffer overflow in Microsoft Account allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS