An information disclosure vulnerability exists when VBScript improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user’s computer or data.
To exploit the vulnerability, an attacker must know the memory address of where the object was created.
The update addresses the vulnerability by changing the way certain functions handle objects in memory.
## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems | 10586.494 | [KB3172985](https://patchblox.com/security/data/fix/microsoft/kb3172985.md) | Jul 12, 2016 | | Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems | 10586.494 | [KB3172985](https://patchblox.com/security/data/fix/microsoft/kb3172985.md) | Jul 12, 2016 | --- 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo Free to use with attribution: show "Data: Patchblox Patch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.