# CVE-2018-8251: Media Foundation Memory Corruption Vulnerability CVE-2018-8251 is fixed in 25 products on 1 platform, first by KB4284880, released June 12, 2018. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/cve/CVE-2018-8251 - Priority: Urgent - CVSS: 4.2 (Critical) - EPSS: 0.0799 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation More Likely - Published: Jun 12, 2018 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8251 ## Description

A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory. An attacker who successfully exploited the vulnerability could install programs; view, change, or delete data; or create new accounts with full user rights.

There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage.

The security update addresses the vulnerability by correcting how Windows Media Foundation handles objects in memory.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2312 | [KB4284880](https://patchblox.com/security/data/fix/microsoft/kb4284880.md) | Jun 12, 2018 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2312 | [KB4284880](https://patchblox.com/security/data/fix/microsoft/kb4284880.md) | Jun 12, 2018 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.1155 | [KB4284874](https://patchblox.com/security/data/fix/microsoft/kb4284874.md) | Jun 12, 2018 | | Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.492 | [KB4284819](https://patchblox.com/security/data/fix/microsoft/kb4284819.md) | Jun 12, 2018 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.492 | [KB4284819](https://patchblox.com/security/data/fix/microsoft/kb4284819.md) | Jun 12, 2018 | | Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.112 | [KB4284835](https://patchblox.com/security/data/fix/microsoft/kb4284835.md) | Jun 12, 2018 | | Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.112 | [KB4284835](https://patchblox.com/security/data/fix/microsoft/kb4284835.md) | Jun 12, 2018 | | Microsoft | Windows 10 for 32-bit Systems | 10240.17889 | [KB4284860](https://patchblox.com/security/data/fix/microsoft/kb4284860.md) | Jun 12, 2018 | | Microsoft | Windows 10 for x64-based Systems | 10240.17889 | [KB4284860](https://patchblox.com/security/data/fix/microsoft/kb4284860.md) | Jun 12, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4284826](https://patchblox.com/security/data/fix/microsoft/kb4284826.md) | Jun 12, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4284867](https://patchblox.com/security/data/fix/microsoft/kb4284867.md) | Jun 12, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4284826](https://patchblox.com/security/data/fix/microsoft/kb4284826.md) | Jun 12, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4284867](https://patchblox.com/security/data/fix/microsoft/kb4284867.md) | Jun 12, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4284815](https://patchblox.com/security/data/fix/microsoft/kb4284815.md) | Jun 12, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4284878](https://patchblox.com/security/data/fix/microsoft/kb4284878.md) | Jun 12, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4284815](https://patchblox.com/security/data/fix/microsoft/kb4284815.md) | Jun 12, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4284878](https://patchblox.com/security/data/fix/microsoft/kb4284878.md) | Jun 12, 2018 | | Microsoft | Windows RT 8.1 | | [KB4284815](https://patchblox.com/security/data/fix/microsoft/kb4284815.md) | Jun 12, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4284826](https://patchblox.com/security/data/fix/microsoft/kb4284826.md) | Jun 12, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4284867](https://patchblox.com/security/data/fix/microsoft/kb4284867.md) | Jun 12, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4284826](https://patchblox.com/security/data/fix/microsoft/kb4284826.md) | Jun 12, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4284867](https://patchblox.com/security/data/fix/microsoft/kb4284867.md) | Jun 12, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4284826](https://patchblox.com/security/data/fix/microsoft/kb4284826.md) | Jun 12, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4284867](https://patchblox.com/security/data/fix/microsoft/kb4284867.md) | Jun 12, 2018 | | Microsoft | Windows Server 2012 | | [KB4284846](https://patchblox.com/security/data/fix/microsoft/kb4284846.md) | Jun 12, 2018 | | Microsoft | Windows Server 2012 | | [KB4284855](https://patchblox.com/security/data/fix/microsoft/kb4284855.md) | Jun 12, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4284846](https://patchblox.com/security/data/fix/microsoft/kb4284846.md) | Jun 12, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4284855](https://patchblox.com/security/data/fix/microsoft/kb4284855.md) | Jun 12, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4284815](https://patchblox.com/security/data/fix/microsoft/kb4284815.md) | Jun 12, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4284878](https://patchblox.com/security/data/fix/microsoft/kb4284878.md) | Jun 12, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4284815](https://patchblox.com/security/data/fix/microsoft/kb4284815.md) | Jun 12, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4284878](https://patchblox.com/security/data/fix/microsoft/kb4284878.md) | Jun 12, 2018 | | Microsoft | Windows Server 2016 | 14393.2312 | [KB4284880](https://patchblox.com/security/data/fix/microsoft/kb4284880.md) | Jun 12, 2018 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2312 | [KB4284880](https://patchblox.com/security/data/fix/microsoft/kb4284880.md) | Jun 12, 2018 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.492 | [KB4284819](https://patchblox.com/security/data/fix/microsoft/kb4284819.md) | Jun 12, 2018 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.112 | [KB4284835](https://patchblox.com/security/data/fix/microsoft/kb4284835.md) | Jun 12, 2018 | --- Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.