XXE in Microsoft Windows
CVE-2019-0793
A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka 'MS XML Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0790, CVE-2019-0791, CVE-2019-0792, CVE-2019-0795.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.182 (97.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.172 · newest: 0.182 · change: +0.010
Affected products
- Microsoft Windows — versions 7 for 32-bit Systems Service Pack 1, 7 for x64-based Systems Service Pack 1, 8.1 for 32-bit systems
- Microsoft Windows 10 — versions 1607, 1703, 1709
- Microsoft Windows 7
- Microsoft Windows 8.1
- Microsoft Windows Rt 8.1
- Microsoft Windows Server — versions 2008 R2 for x64-based Systems Service Pack 1 (Core installation), 2008 R2 for Itanium-Based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1
- Microsoft Windows Server 2008 — versions r2
- 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
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0793 (Patch, Vendor Advisory)
- www.securityfocus.com/bid/107729 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-0793?
- CVE-2019-0793 is a high-severity vulnerability in Microsoft Windows, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 8.8/10. Published 2019-04-09.
- How severe is CVE-2019-0793?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2019-0793 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.