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CVE-2026-58534

HighCVSS 7.8/10Last modified Jul 22, 2026

Description

Heap-based buffer overflow in Microsoft Input Method Editor (IME) allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Windows 10 Version 1607	>= 10.0.14393.0, < 10.0.14393.9339
Microsoft	Windows 10 Version 1809	>= 10.0.17763.0, < 10.0.17763.9020
Microsoft	Windows 10 Version 21H2	>= 10.0.19044.0, < 10.0.19044.7548
Microsoft	Windows 10 Version 22H2	>= 10.0.19045.0, < 10.0.19045.7548
Microsoft	Windows 11 Version 24H2	>= 10.0.26100.0, < 10.0.26100.8875
Microsoft	Windows 11 Version 25H2	>= 10.0.26200.0, < 10.0.26200.8875
Microsoft	Windows 11 version 26H1	>= 10.0.28000.0, < 10.0.28000.2525
Microsoft	Windows Server 2016	>= 10.0.14393.0, < 10.0.14393.9339
Microsoft	Windows Server 2016 (Server Core installation)	>= 10.0.14393.0, < 10.0.14393.9339
Microsoft	Windows Server 2019	>= 10.0.17763.0, < 10.0.17763.9020
Microsoft	Windows Server 2019 (Server Core installation)	>= 10.0.17763.0, < 10.0.17763.9020
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.5386
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.33158
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.33158

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58534Patch, Vendor Advisory

Timeline

Published: Jul 14, 2026
Last modified: Jul 22, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-585357.5Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.CVE-2026-585367.8Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.CVE-2026-585377.8Use after free in Microsoft NAT Helper Components (ipnathlp.dll) allows an authorized attacker to elevate privileges locally.CVE-2026-585387.8Heap-based buffer overflow in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.CVE-2026-585397.5Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network.CVE-2026-58549.8A vulnerability was detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this issue is the function setWiFiEasyCfg of the file /cg CVE-2026-585407.8Improper authorization in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-585417.8Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized attacker to elevate privileges locally.CVE-2026-585427.8Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.CVE-2026-585436.3Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print Driver allows an authorized CVE-2026-585447.0Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.CVE-2026-585455.5Improper access control in Windows Kernel allows an authorized attacker to bypass a security feature locally.

CVE-2026-58534: High severity, CVSS 7.8 | Vulnix