CVE-2026-49784
HIGHCVSS 7/10EPSS 0.15%
Last modified
CVE-2026-49784 is a high-severity vulnerability rated 7/10 on the CVSS scale. Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.. EPSS estimates a 0.15% chance of exploitation in the next 30 days.
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.9339 |
| Microsoft | Windows 10 1809 | < 10.0.17763.9020 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.7548 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.7548 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.8875 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.8875 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2269 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2525 |
| Microsoft | Windows Server 2016 | < 10.0.14393.9339 |
| Microsoft | Windows Server 2019 | < 10.0.17763.9020 |
| Microsoft | Windows Server 2022 | < 10.0.20348.5386 |
| Microsoft | Windows Server 2025 | < 10.0.26100.33158 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49784Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-49784?
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-49784?
CVE-2026-49784 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.
How do I fix CVE-2026-49784?
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-2026-49779Path Traversal: '.../...//' vulnerability in Addify Tax Exem…6.5
- CVE-2026-4978Improper neutralization of special elements used in an SQL c…9.8
- CVE-2026-49780Customer Privilege Escalation in Dokan <= 5.0.2 versions.8.8
- CVE-2026-49781Unauthenticated PHP Object Injection in OttoKit <= 1.1.27 ve…9.8
- CVE-2026-49782Missing Authorization vulnerability in Elementor Elementor W…5.4
- CVE-2026-49783Improperly implemented security check for standard in Window…7.8
- CVE-2026-49787Allocation of resources without limits or throttling in Wind…7.5
- CVE-2026-49788Allocation of resources without limits or throttling in HTTP…7.5
- CVE-2026-49789Stack-based buffer overflow in Windows NTFS allows an author…7.8
- CVE-2026-4979The UsersWP – Front-end login form, User Registration, User …5
- CVE-2026-49790Windows Universal Disk Format File System Driver (UDFS) Elev…7.8
- CVE-2026-49791Improper link resolution before file access ('link following…7.8
Are you affected by CVE-2026-49784?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST