CVE-2026-40369
Windows Kernel Elevation of Privilege Vulnerability
- Published
- May 12, 2026
- Updated
- Aug 10, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 25.1%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
Sources
- CVE-2026-40369Research
Defensive technical analysis of CVE-2026-40369, a Windows kernel EoP vulnerability with a 12-byte additive write primitive. Covers root cause, exploit constraints, KASLR bypass, and detection recommendations.
- CVE-2026-40369-EXPLOITExploit
Full exploit code for CVE-2026-40369 - A Windows kernel arbitrary write vulnerability that allows browser sandbox escape from all browsers render process sandbox
- cve-2026-40369-exploitExploit
Exploit for CVE-2026-40369 that leverages kernel address leak and token forging to achieve privilege escalation in a browser sandbox environment.
- CVE-2026-40369Informational
CVE-2026-40369
- CVE-2026-40369Exploit
CVE-2026-40369本地权限提升漏洞exp
- CVE_2026_40369Exploit
Exploit PoC for CVE-2026-40369 targeting Windows kernel; includes kASLR bypass, heap grooming, remote thread injection, and per-build offsets.
- ntoskrnl-metadataResearch
eprocess offset puller for relevant member offsets and function addresses for cve-2026-40369
Proof-of-concept exploit code targeting CVE-2026-40369, demonstrating the vulnerability for research and authorized security testing.
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.