Vulnerability in Microsoft Windows
CVE-2019-0859
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0803.
EPSS: 0.042 (89.8th 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
- 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_1507
- Microsoft Windows_10_1607
- Microsoft Windows_10_1703
- Microsoft Windows_10_1709
- Microsoft Windows_10_1803
- Microsoft Windows_10_1809
- Microsoft Windows_7
- Microsoft Windows_8.1
- Microsoft Windows_rt_8.1
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.
Public proof-of-concept exploits
- Sheisback/CVE-2019-0859-1day-Exploit
- 0xT11/CVE-POC
- 0xcyberpj/windows-exploitation
- 0xpetros/windows-privilage-escalation
- Ascotbe/Kernelhub
- Cruxer8Mech/Idk
- FULLSHADE/WindowsExploitationResources
- MustafaNafizDurukan/WindowsKernelExploitationResources
- NitroA/windowsexpoitationresources
- NullArray/WinKernel-Resources
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2019-0859?
- CVE-2019-0859 is a high-severity vulnerability in Microsoft Windows. CVSS score: 7.8/10. Published 2019-04-09.
- How severe is CVE-2019-0859?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-0859 known to be exploited?
- Yes. CVE-2019-0859 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 21 public proof-of-concept repositories are indexed.