MITRE CVE-2016-9535: LibTIFF Heap Buffer Overflow Vulnerability
CVE-2016-9535 is fixed in 39 products on 1 platform, first by KB5066836, released October 14, 2025. It is not reported as exploited. Patch Radar priority: Urgent.
<p>tif_predict.h and tif_predict.c in libtiff 4.0.6 have assertions that can lead to assertion failures in debug mode, or buffer overflows in release mode, when dealing with unusual tile size like YCbCr with subsampling. Reported as MSVR 35105, aka "Predictor heap-buffer-overflow."</p> <p>MITRE created this CVE on their behalf. The documented Windows updates incorporate updates in LibTIFF which address this vulnerability. Please see <a href="https://msrc-blog.microsoft.com/2021/01/13/security-update-guide-supports-cves-assigned-by-industry-partners/">Security Update Guide Supports CVEs Assigned by Industry Partners</a> for more information.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1607 for 32-bit Systems | 14393.8519 | KB5066836 | Oct 14, 2025 |
| Windows 10 Version 1607 for x64-based Systems | 14393.8519 | KB5066836 | Oct 14, 2025 |
| Windows 10 Version 1809 for 32-bit Systems | 17763.7919 | KB5066586 | Oct 14, 2025 |
| Windows 10 Version 1809 for x64-based Systems | 17763.7919 | KB5066586 | Oct 14, 2025 |
| Windows 10 Version 21H2 for 32-bit Systems | KB5066791 | Oct 14, 2025 | |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5066791 | Oct 14, 2025 | |
| Windows 10 Version 21H2 for x64-based Systems | KB5066791 | Oct 14, 2025 | |
| Windows 10 Version 22H2 for 32-bit Systems | KB5066791 | Oct 14, 2025 | |
| Windows 10 Version 22H2 for ARM64-based Systems | KB5066791 | Oct 14, 2025 | |
| Windows 10 Version 22H2 for x64-based Systems | KB5066791 | Oct 14, 2025 | |
| Windows 10 for 32-bit Systems | 10240.21161 | KB5066837 | Oct 14, 2025 |
| Windows 10 for x64-based Systems | 10240.21161 | KB5066837 | Oct 14, 2025 |
| Windows 11 Version 22H2 for ARM64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 22H2 for x64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 23H2 for ARM64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 23H2 for x64-based Systems | KB5066793 | Oct 14, 2025 | |
| Windows 11 Version 24H2 for ARM64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows 11 Version 24H2 for x64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows 11 Version 25H2 for ARM64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows 11 Version 25H2 for x64-based Systems | KB5066835 | Oct 14, 2025 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB5066872 | Oct 14, 2025 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB5066876 | Oct 14, 2025 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB5066872 | Oct 14, 2025 | |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB5066876 | Oct 14, 2025 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB5066874 | Oct 14, 2025 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB5066877 | Oct 14, 2025 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB5066874 | Oct 14, 2025 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB5066877 | Oct 14, 2025 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB5066874 | Oct 14, 2025 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB5066877 | Oct 14, 2025 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB5066874 | Oct 14, 2025 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB5066877 | Oct 14, 2025 | |
| Windows Server 2012 | KB5066875 | Oct 14, 2025 | |
| Windows Server 2012 (Server Core installation) | KB5066875 | Oct 14, 2025 | |
| Windows Server 2012 R2 | KB5066873 | Oct 14, 2025 | |
| Windows Server 2012 R2 (Server Core installation) | KB5066873 | Oct 14, 2025 | |
| Windows Server 2016 | 14393.8519 | KB5066836 | Oct 14, 2025 |
| Windows Server 2016 (Server Core installation) | 14393.8519 | KB5066836 | Oct 14, 2025 |
| Windows Server 2019 | 17763.7919 | KB5066586 | Oct 14, 2025 |
| Windows Server 2019 (Server Core installation) | 17763.7919 | KB5066586 | Oct 14, 2025 |
| Windows Server 2022 | 20348.4294 | KB5066782 | Oct 14, 2025 |
| Windows Server 2022 (Server Core installation) | 20348.4294 | KB5066782 | Oct 14, 2025 |
| Windows Server 2022, 23H2 Edition (Server Core installation) | 25398.1913 | KB5066780 | Oct 14, 2025 |
| Windows Server 2025 | KB5066835 | Oct 14, 2025 | |
| Windows Server 2025 (Server Core installation) | KB5066835 | Oct 14, 2025 | |