CVE-2020-1434
MEDIUMCVSS 5.3/10EPSS 0.78%
Last modified
CVE-2020-1434 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An elevation of privilege vulnerability exists in the way that the Windows Sync Host Service handles objects in memory, aka 'Windows Sync Host Service Elevation of Privilege Vulnerability'.. EPSS estimates a 0.78% chance of exploitation in the next 30 days.
Description
An elevation of privilege vulnerability exists in the way that the Windows Sync Host Service handles objects in memory, aka 'Windows Sync Host Service Elevation of Privilege Vulnerability'.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 | All versions |
| Microsoft | Windows 10 | 1607 |
| Microsoft | Windows 10 | 1709 |
| Microsoft | Windows 10 | 1803 |
| Microsoft | Windows 10 | 1809 |
| Microsoft | Windows 10 | 1903 |
| Microsoft | Windows 10 | 1909 |
| Microsoft | Windows 10 | 2004 |
| Microsoft | Windows Server 2016 | All versions |
| Microsoft | Windows Server 2016 | 1903 |
| Microsoft | Windows Server 2016 | 1909 |
| Microsoft | Windows Server 2016 | 2004 |
| Microsoft | Windows Server 2019 | All versions |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1434Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1434Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-1434?
An elevation of privilege vulnerability exists in the way that the Windows Sync Host Service handles objects in memory, aka 'Windows Sync Host Service Elevation of Privilege Vulnerability'.
How severe is CVE-2020-1434?
CVE-2020-1434 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1434?
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.
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Are you affected by CVE-2020-1434?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST