CVE-2026-69390
MEDIUMCVSS 5.5/10EPSS 0.40%
Last modified
CVE-2026-69390 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
Description
Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.9512 |
| Microsoft | Windows 10 1809 | < 10.0.17763.9245 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.7725 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.7725 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.7582 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.9445 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.9445 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2954 |
| Microsoft | Windows Server 2016 | < 10.0.14393.9512 |
| Microsoft | Windows Server 2019 | < 10.0.17763.9245 |
| Microsoft | Windows Server 2022 | < 10.0.20348.5622 |
| Microsoft | Windows Server 2025 | < 10.0.26100.33438 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69390Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-69390?
Out-of-bounds read in Windows Spaceport.sys allows an authorized attacker to disclose information locally.
How severe is CVE-2026-69390?
CVE-2026-69390 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2026-69390?
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-2026-69384Null pointer dereference in Virtual Hard Disk (VHD) Miniport…7.1
- CVE-2026-69385Concurrent execution using shared resource with improper syn…7
- CVE-2026-69386Heap-based buffer overflow in Microsoft Windows Media Founda…8.8
- CVE-2026-69388Use after free in Windows Bluetooth Service allows an author…7
- CVE-2026-69389Heap-based buffer overflow in Windows Storage Management Pro…7.8
- CVE-2026-6939The CorvusPay WooCommerce Payment Gateway plugin for WordPre…7.2
- CVE-2026-69391Stack-based buffer overflow in Windows Broker Infrastructure…7.8
- CVE-2026-69392Use after free in Windows Shell allows an authorized attacke…7.8
- CVE-2026-69393Out-of-bounds read in Windows Spaceport.sys allows an author…5.7
- CVE-2026-69394Heap-based buffer overflow in Windows Audio Service allows a…7
- CVE-2026-69395Use of externally-controlled format string in Active Directo…6.5
- CVE-2026-69396Use after free in Windows NDIS allows an authorized attacker…7.1
Are you affected by CVE-2026-69390?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST