CVE-2026-44809
HIGHCVSS 7.8/10EPSS 0.27%
Last modified
CVE-2026-44809 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 11 24h2 | < 10.0.26100.8655 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.8655 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2269 |
| Microsoft | Windows Server 2025 | < 10.0.26100.32995 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-44809?
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-44809?
CVE-2026-44809 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2026-44809?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-44803Integer overflow or wraparound in Windows Win32K - GRFX allo…7.8
- CVE-2026-44804Use after free in Windows DWM Core Library allows an authori…7.8
- CVE-2026-44805Use after free in Windows Network Controller (NC) Host Agent…5.5
- CVE-2026-44806Missing release of memory after effective lifetime in Window…7.5
- CVE-2026-44807Use after free in Windows DWM Core Library allows an authori…7.8
- CVE-2026-44808Heap-based buffer overflow in Windows DWM Core Library allow…7.8
- CVE-2026-44810Improper authentication in Windows Cryptographic Services al…7.8
- CVE-2026-44811Heap-based buffer overflow in Windows DWM Core Library allow…7.8
- CVE-2026-44812Integer overflow or wraparound in Windows Win32K - GRFX allo…7.8
- CVE-2026-44813Use after free in Windows DWM Core Library allows an authori…7.8
- CVE-2026-44814Out-of-bounds read in Windows DWM Core Library allows an aut…5.5
- CVE-2026-44815Stack-based buffer overflow in Windows DHCP Client allows an…9.8
Are you affected by CVE-2026-44809?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST