Auth bypass in Microsoft Windows 10
CVE-2019-0555
An elevation of privilege vulnerability exists in the Microsoft XmlDocument class that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft XmlDocument Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2012, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Microsoft Windows 10 — versions 1607, 1703, 1709
- Microsoft Windows 8.1
- Microsoft Windows Rt 8.1
- Microsoft Windows Server 2012 — versions r2
- Microsoft Windows Server 2016 — versions 1709, 1803
- Microsoft Windows Server 2019
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/46185/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0555 (Patch, Vendor Advisory)
- www.securityfocus.com/bid/106395 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-0555?
- CVE-2019-0555 is a high-severity vulnerability in Microsoft Windows 10, classified under Missing Authorization. CVSS score: 7.8/10. Published 2019-01-08.
- How severe is CVE-2019-0555?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-0555 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.