CVE-2026-62800

HighCVSS 8.8/10Last modified Aug 16, 2026

Description

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

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

No affected versions have been published.

Timeline

Published
Aug 11, 2026
Last modified
Aug 16, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-628016.5Improper limitation of a pathname to a restricted directory ('path traversal') in Windows PowerShell allows an unauthorized attacker to bypaCVE-2026-628037.8Improper link resolution before file access ('link following') in Windows DHCP Server allows an authorized attacker to elevate privileges loCVE-2026-628047.8External control of file name or path in Microsoft Office Word allows an unauthorized attacker to execute code locally.CVE-2026-628077.8Improper link resolution before file access ('link following') in Windows DHCP Server allows an authorized attacker to elevate privileges loCVE-2026-62818.8A potential vulnerability was reported in some Lenovo Personal Cloud Storage devices that could allow a remote authenticated user on the locCVE-2026-628107.8Heap-based buffer overflow in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.CVE-2026-628117.8Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.CVE-2026-628127.8Improper link resolution before file access ('link following') in Windows DHCP Server allows an authorized attacker to elevate privileges loCVE-2026-628137.5Use after free in Active Directory Domain Services allows an authorized attacker to execute code over a network.CVE-2026-628146.5Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent netwoCVE-2026-628159.8Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network.CVE-2026-628168.8Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent
CVE-2026-62800: High severity, CVSS 8.8 | Vulnix