CVE-2019-1458 — An elevation of privilege vulnerability exists in Windows when the Win32k compon
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
2019-12-10T22:15:16.103
Last modified
2026-08-12T05:17:25.097
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA KEV — Actively Exploited
01What is this vulnerability?
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'.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Yes — actively exploited. Added to the CISA KEV catalog on 2022-01-10. Ransomware use: Known.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:
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07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2019-12-10T22:15:16.103
- Last modified: 2026-08-12T05:17:25.097
- Added to CISA KEV: 2022-01-10
09References
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