An information disclosure vulnerability exists in Windows Media Player when it fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could potentially read data that was not intended to be disclosed.
To exploit this vulnerability, an attacker would have to log on to an affected system and open a specifically crafted file.
The update addresses the vulnerability by correcting how Windows Media Player handles objects in memory.
## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4530734](https://patchblox.com/security/data/fix/microsoft/kb4530734.md) | Dec 10, 2019 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4530692](https://patchblox.com/security/data/fix/microsoft/kb4530692.md) | Dec 10, 2019 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4530734](https://patchblox.com/security/data/fix/microsoft/kb4530734.md) | Dec 10, 2019 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4530692](https://patchblox.com/security/data/fix/microsoft/kb4530692.md) | Dec 10, 2019 | --- 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch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.