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8.8

Windows 11/Server 2025 may let attackers run code

CVE-2026-83523 · published 22 days ago
Summary

The imaging component in Windows 11 versions 24H2, 25H2, 26H1, 26H2 and Windows Server 2025 has a flaw that could allow someone on the network to run their own programs on the computer. This could give an attacker control of the system or access to sensitive data. Install the latest security updates from Microsoft as soon as they are available to close the gap.

What to do
  • Update microsoft windows 11 version 24h2 to version 10.0.26100.9711 or later.
  • Update microsoft windows 11 version 25h2 to version 10.0.26200.9711 or later.
  • Update microsoft windows 11 version 26h1 to version 10.0.28000.3231 or later.
  • Update microsoft windows 11 version 26h2 to version 10.0.26300.9711 or later.
  • Update microsoft windows server 2025 to version 10.0.26100.33650 or later.
  • Update microsoft windows server 2025 (server core installation) to version 10.0.26100.33650 or later.
  • Update microsoft windows_11_24h2 to version 10.0.26100.9711 or later.
  • Update microsoft windows_11_25h2 to version 10.0.26200.9711 or later.
  • Update microsoft windows_11_26h1 to version 10.0.28000.3231 or later.
  • Update microsoft windows_11_26h2 to version 10.0.26300.9711 or later.
  • Update microsoft windows_server_2025 to version 10.0.26100.33650 or later.
Affected software
VendorProductAffected versions
microsoft windows 11 version 24h2 < 10.0.26100.9711
microsoft windows 11 version 25h2 < 10.0.26200.9711
microsoft windows 11 version 26h1 < 10.0.28000.3231
microsoft windows 11 version 26h2 < 10.0.26300.9711
microsoft windows server 2025 < 10.0.26100.33650
microsoft windows server 2025 (server core installation) < 10.0.26100.33650
microsoft windows_11_24h2 < 10.0.26100.9711
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
microsoft windows_11_25h2 < 10.0.26200.9711
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
microsoft windows_11_26h1 < 10.0.28000.3231
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
microsoft windows_11_26h2 < 10.0.26300.9711
cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:arm64:*
microsoft windows_server_2025 < 10.0.26100.33650
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*
Original advisory text
Windows Image Acquisition Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Image Acquisition allows an unauthorized attacker to execute code over a network.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
8.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-122Heap-based Buffer Overflow
Timeline
Published13 Oct 2026
Updated4 Nov 2026
First seen13 Oct 2026
Sources
CVE-2026-83523 · NVD
CVE-2026-83523 · MITRE
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