Skip to main content

CVE-2026-62800

Windows SMBv3 Server Remote Code Execution vulnerability

Microsoft

MSRC advisory August 11, 2026

Alert details

Source feed
Microsoft MSRC
CVE ID
CVE-2026-62800
Affected products
Windows SMBv3 Server Remote Code Execution · Microsoft Windows SMBv3 Server Remote Code Execution · Microsoft

What happened

Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network.

What it means for your business

Windows SMBv3 Server Remote Code Execution vulnerability (CVE-2026-62800) was added to Microsoft’s security update guidance. Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.

Sources

Related briefs

MediumMicrosoft MSRC

CVE-2026-87559

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.

HighMicrosoft MSRC

CVE-2026-85893

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.

HighMicrosoft MSRC

CVE-2026-69486

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 MSRC

CVE-2026-63508

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.