Vulnerability in Microsoft Windows
CVE-2019-1458
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'.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.744 (99.5th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.743 · newest: 0.744 · change: +0.002
Affected products
- Microsoft Windows — versions 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems
- Microsoft Windows 10 1507
- Microsoft Windows 10 1607
- Microsoft Windows 7
- Microsoft Windows 8.1
- Microsoft Windows Rt 8.1
- Microsoft Windows Server — versions 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2
- Microsoft Windows Server 2008 — versions r2
- Microsoft Windows Server 2012 — versions r2
- Microsoft Windows Server 2016
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
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1458 (Patch, Vendor Advisory)
- packetstormsecurity.com/files/156651/Microsoft-Windows-WizardOpium-Local-Privil… (Exploit, VDB Entry, Third Party Advisory)
- packetstormsecurity.com/files/159569/Microsoft-Windows-Uninitialized-Variable-L… (Exploit, VDB Entry, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2019-1458?
- CVE-2019-1458 is a high-severity vulnerability in Microsoft Windows. CVSS score: 7.8/10. Published 2019-12-10.
- How severe is CVE-2019-1458?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-1458 known to be exploited?
- Yes. CVE-2019-1458 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-01-10), indicating it is being actively exploited. 82 public proof-of-concept repositories are indexed.