CVE-2026-20818
MEDIUMCVSS 6.2/10EPSS 0.69%
Last modified
CVE-2026-20818 is a medium-severity vulnerability rated 6.2/10 on the CVSS scale. Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.
Description
Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2016 | < 10.0.14393.8783 |
| Microsoft | Windows Server 2019 | < 10.0.17763.8276 |
| Microsoft | Windows Server 2022 | < 10.0.20348.4648 |
| Microsoft | Windows Server 2022 23h2 | < 10.0.25398.2092 |
| Microsoft | Windows Server 2025 | < 10.0.26100.7623 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-20818?
Insertion of sensitive information into log file in Windows Kernel allows an unauthorized attacker to disclose information locally.
How severe is CVE-2026-20818?
CVE-2026-20818 has a CVSS score of 6.2/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20818?
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-2026-20811Access of resource using incompatible type ('type confusion'…7.8
- CVE-2026-20812Improper input validation in Windows LDAP - Lightweight Dire…6.5
- CVE-2026-20814Concurrent execution using shared resource with improper syn…7
- CVE-2026-20815Concurrent execution using shared resource with improper syn…7
- CVE-2026-20816Time-of-check time-of-use (toctou) race condition in Windows…7
- CVE-2026-20817Improper handling of insufficient permissions or privileges …7.8
- CVE-2026-20819Untrusted pointer dereference in Windows Virtualization-Base…5.5
- CVE-2026-2082A vulnerability was identified in D-Link DIR-823X 250416. Th…7.2
- CVE-2026-20820Heap-based buffer overflow in Windows Common Log File System…7.8
- CVE-2026-20821Exposure of sensitive information to an unauthorized actor i…6.2
- CVE-2026-20822Use after free in Microsoft Graphics Component allows an aut…7.8
- CVE-2026-20823Exposure of sensitive information to an unauthorized actor i…5.5
Are you affected by CVE-2026-20818?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST