What is CVE-2025-47991?

CVE-2025-47991 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Input Method Editor (IME) Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2025-47991 cover?

CVE-2025-47991 covers the following CVE IDs: CVE-2025-47991. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-47991?

CVE-2025-47991 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-47991?

CVE-2025-47991 affects 25 products, including: Windows 10 Version 1607 for 32-bit Systems; Windows 10 Version 1607 for x64-based Systems; Windows 10 Version 1809 for 32-bit Systems; Windows 10 Version 1809 for x64-based Systems; Windows 10 Version 21H2 for 32-bit Systems; and others — see the full list on the advisory page.

CVE-2025-47991HighCVSS 7.8

Windows Input Method Editor (IME) Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

July 8, 2025

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-47991 →

📋 Description

Use after free in Microsoft Input Method Editor (IME) allows an authorized attacker to elevate privileges locally.

🎯 Affected products25

Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 21H2 for 32-bit Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Windows 10 Version 22H2 for 32-bit Systems
Windows 10 Version 22H2 for ARM64-based Systems
Windows 10 Version 22H2 for x64-based Systems
Windows 11 Version 22H2 for ARM64-based Systems
Windows 11 Version 22H2 for x64-based Systems
Windows 11 Version 23H2 for ARM64-based Systems
Windows 11 Version 23H2 for x64-based Systems
Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows Server 2022, 23H2 Edition (Server Core installation)
Windows Server 2025
Windows Server 2025 (Server Core installation)

✅ Remediation

KB5062557 (Security Update) — fixed build 10.0.17763.7558 KB5062572 (Security Update) — fixed build 10.0.20348.3932 KB5062554 (Security Update) — fixed build 10.0.19044.6093 KB5062552 (Security Update) — fixed build 10.0.22621.5624 KB5062554 (Security Update) — fixed build 10.0.19045.6093 KB5062553 (Security Update) — fixed build 10.0.26100.4652 KB5062552 (Security Update) — fixed build 10.0.22631.5624 KB5062570 (Security Update) — fixed build 10.0.25398.1732 KB5062560 (Security Update) — fixed build 10.0.14393.8246

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products25

✅ Remediation

🔗 References (15)