Auth bypass in Microsoft Windows_10_1507
CVE-2019-0543
An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka "Microsoft Windows Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows S…
Vulnerability class: Broken Authentication
EPSS: 0.047 (90.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
- secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- secure@microsoft.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2019-0543?
- CVE-2019-0543 is a high-severity vulnerability in Microsoft Windows_10_1507, classified under Improper Authentication. CVSS score: 7.8/10. Published 2019-01-08.
- How severe is CVE-2019-0543?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-0543 known to be exploited?
- Yes. CVE-2019-0543 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-15), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.