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Fencer Intel
high 7.8

CVE-2019-1458 kev+ ransomware in the critical feed json

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k…

published 6y ago modified 2mo ago also EUVD-2019-10015

cvss
7.8
version 3.1, CNA
cisa kev
Exploited
added 2022-01-10, used in ransomware
epss
74.4%
EPSS 74.4% chance of exploitation in 30 days, percentile 99.4%
public exploits
2
Metasploit and Exploit-DB

Summary

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'.

Patch / fix

cisa required action Apply updates per vendor instructions.

Is CVE-2019-1458 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. 0-day patched (Project Zero)
  2. First public exploit (Metasploit exploit/windows/local/cve_2019_1458_wizardopium)
  3. Published
  4. CISA SSVC: exploitation active
  5. Added to CISA KEV
  6. CISA patch deadline

Known exploited

Added
4y ago
Patch by
2022-07-10 (4y ago)
Ransomware
Known to be used in ransomware campaigns
Required action
Apply updates per vendor instructions.
Vendor, product
Microsoft, Win32k
CISA name
Microsoft Win32k Privilege Escalation Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Patched
2019-12-10
Details
project zero root cause analysis

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
4y ago

Exploit prediction

74.44% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/windows/local/cve_2019_1458_wizardopium Microsoft Windows Uninitialized Variable Local Privilege Elevation metasploit exploit, normal rank, 2019-12-10
  • EDB-48180 Microsoft Windows - 'WizardOpium' Local Privilege Escalation local, 2020-03-03
  • packetstormsecurity.com http://packetstormsecurity.com/files/156651/Microsoft-Windows-WizardOpium-Local-Privilege-Escalation.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/159569/Microsoft-Windows-Uninitialized-Variable-Local-Privilege-Escalation.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • Microsoft Windows
  • Microsoft Windows Server

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.