CVE-2025-49666 — Heap-based Buffer Overflow in Microsoft Windows Server 2016

CWE-122 — Heap-based Buffer Overflow4 documents4 sources
Severity
7.2HIGHNVD
EPSS
0.6%
top 29.75%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Microsoft Windows Server 2016Microsoft Windows Server 2019Microsoft Windows Server 2022+2 more
Timeline
PublishedJul 8

Description

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 1.2 | Impact: 5.9

Affected Packages5 packages

▶NVDmicrosoft/windows< 10.0.14393.8246+4
▶CVEListV5microsoft/windows_server_201610.0.14393.0 — 10.0.14393.8246
▶CVEListV5microsoft/windows_server_201910.0.17763.0 — 10.0.17763.7558
▶CVEListV5microsoft/windows_server_202210.0.20348.0 — 10.0.20348.3932
▶CVEListV5microsoft/windows_server_202510.0.26100.0 — 10.0.26100.4652

🔴Vulnerability Details

2
CVEList
Windows Server Setup and Boot Event Collection Remote Code Execution Vulnerability↗2025-07-08
▶
GHSA
GHSA-jmhj-j4mm-pjj6: Heap-based buffer overflow in Windows Kernel allows an authorized attacker to execute code over a network↗2025-07-08
▶

📋Vendor Advisories

1
Microsoft
Windows Server Setup and Boot Event Collection Remote Code Execution Vulnerability↗2025-07-08
▶
CVE-2025-49666 — Heap-based Buffer Overflow | cvebase