CVE-2026-59136
Microsoft COM for Windows Information Disclosure vulnerability
MSRC advisory August 11, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-59136
- Affected products
- Microsoft COM for Windows Information Disclosure · Microsoft Microsoft COM for Windows Information Disclosure · Microsoft
What happened
Use of uninitialized resource in Microsoft COM for Windows allows an authorized attacker to disclose information locally.
What it means for your business
Microsoft COM for Windows Information Disclosure vulnerability (CVE-2026-59136) was added to Microsoft’s security update guidance. Use of uninitialized resource in Microsoft COM for Windows allows an authorized attacker to disclose information locally. If you need help checking exposure, call (864) 335-9223.
Sources
Related briefs
Chromium CVE-2026-87559: UI misrepresentation in Microsoft Edge vulnerability
Chromium CVE-2026-87559: UI misrepresentation in Microsoft Edge vulnerability (CVE-2026-87559) was added to Microsoft’s security update guidance. This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see [Google Chrome Releases](https://chromereleases.googleblog.com/2026) for more information. If you need help checking exposure, call (864) 335-9223.
Microsoft Edge (Chromium-based) Elevation of Privilege vulnerability
Microsoft Edge (Chromium-based) Elevation of Privilege vulnerability (CVE-2026-85893) was added to Microsoft’s security update guidance. <p>Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.</p> If you need help checking exposure, call (864) 335-9223.
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability (CVE-2026-69486) was added to Microsoft’s security update guidance. <p>Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.</p> If you need help checking exposure, call (864) 335-9223.
Microsoft Planetary Computer Pro Elevation of Privilege vulnerability
Microsoft Planetary Computer Pro Elevation of Privilege vulnerability (CVE-2026-63508) was added to Microsoft’s security update guidance. Updated an acknowledgement. This is an informational change only. If you need help checking exposure, call (864) 335-9223.
Need help patching?
PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.