9.8

CVE-2026-45657

Medienbericht

Windows Kernel Remote Code Execution Vulnerability

Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
MicrosoftWindows 11 23h2 HwPlatformarm64 Version < 10.0.22631.7219
MicrosoftWindows 11 23h2 HwPlatformx64 Version < 10.0.22631.7219
MicrosoftWindows 11 24h2 HwPlatformarm64 Version < 10.0.26100.8655
MicrosoftWindows 11 24h2 HwPlatformx64 Version < 10.0.26100.8655
MicrosoftWindows 11 25h2 HwPlatformarm64 Version < 10.0.26200.8655
MicrosoftWindows 11 25h2 HwPlatformx64 Version < 10.0.26200.8655
MicrosoftWindows 11 26h1 HwPlatformarm64 Version < 10.0.28000.2269
MicrosoftWindows 11 26h1 HwPlatformx64 Version < 10.0.28000.2269
MicrosoftWindows Server 2022 Version < 10.0.20348.5256
MicrosoftWindows Server 2025 HwPlatformx64 Version < 10.0.26100.32995
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 15.48% 0.964
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secure@microsoft.com 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-122 Heap-based Buffer Overflow

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().

CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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10.06.2026 18:13
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10.06.2026 12:58
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10.06.2026 09:12
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VulnDex Intel
Media Report
09.06.2026 20:12
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45657
Vendor Advisory