Information disclosure in Microsoft Windows 10
CVE-2019-1019
A security feature bypass vulnerability exists where a NETLOGON message is able to obtain the session key and sign messages. To exploit this vulnerability, an attacker could send a specially crafted authentication request. An attacker who successfully exploited this vulnerability could access another machine using the original user privileges. The issue has been addressed by changing how NTLM validates network authentication messages.
Vulnerability class: Information Disclosure
EPSS: 0.151 (96.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Microsoft Windows_10 — versions 1607, 1703, 1709
- Microsoft Windows 10 Version 1507 — versions 10.0.10240.0
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1703 — versions 10.0.0
- Microsoft Windows 10 Version 1709 — versions 10.0.0
- Microsoft Windows 10 Version 1709 For 32-bit Systems — versions 10.0.0
- Microsoft Windows 10 Version 1803 — versions 10.0.0
- Microsoft Windows 10 Version 1809 — versions 10.0.0, 10.0.17763.0
- Microsoft Windows 10 Version 1903 For 32-bit Systems — versions 10.0.0
- Microsoft Windows 10 Version 1903 For Arm64-based Systems — versions 10.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-1019?
- CVE-2019-1019 is a high-severity vulnerability in Microsoft Windows 10, classified under Information Disclosure. CVSS score: 8.5/10. Published 2019-06-12.
- How severe is CVE-2019-1019?
- High severity. CVSS v3 base score is 8.5 out of 10.
- Is CVE-2019-1019 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.