CVE-2019-1458

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-01-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 74%CVSS: 7.8Exploit: cisa kev · ssvc active · kev ransomware · Metasploit · epss top5pct · epss high · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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'.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
74%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

December 10, 2019

Last Modified

August 12, 2026

Advisory Details (4)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1458
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1458
generic

Packet Storm

http://packetstormsecurity.com/files/159569/Microsoft-Windows-Uninitialized-Variable-Local-Privilege-Escalation.html
generic

Packet Storm

http://packetstormsecurity.com/files/156651/Microsoft-Windows-WizardOpium-Local-Privilege-Escalation.html

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 96× in last 7d / 352× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 1,040 total refreshes for this CVE.

  1. 2026-08-21 23:45 UTCEPSS rescore
  2. 2026-08-21 23:33 UTCGHSA enrichment
  3. 2026-08-21 19:35 UTCGHSA enrichment
  4. 2026-08-21 16:49 UTCCISA KEV update
  5. 2026-08-21 15:37 UTCGHSA enrichment
  6. 2026-08-21 11:39 UTCVendor advisory
  7. 2026-08-21 11:39 UTCGHSA enrichment
  8. 2026-08-21 07:40 UTCVendor advisory
  9. 2026-08-21 07:40 UTCGHSA enrichment
  10. 2026-08-21 03:42 UTCVendor advisory
  11. 2026-08-21 03:42 UTCGHSA enrichment
  12. 2026-08-20 23:44 UTCEG score recompute
  13. 2026-08-20 23:44 UTCVendor advisory
  14. 2026-08-20 23:44 UTCGHSA enrichment
  15. 2026-08-20 22:51 UTCEPSS rescore
  16. 2026-08-20 19:47 UTCVendor advisory
  17. 2026-08-20 19:47 UTCGHSA enrichment
  18. 2026-08-20 17:06 UTCCISA KEV update
  19. 2026-08-20 15:49 UTCVendor advisory
  20. 2026-08-20 15:49 UTCGHSA enrichment
  21. 2026-08-20 11:51 UTCVendor advisory
  22. 2026-08-20 11:50 UTCGHSA enrichment
  23. 2026-08-20 07:51 UTCVendor advisory
  24. 2026-08-20 07:51 UTCGHSA enrichment
  25. 2026-08-20 03:54 UTCGHSA enrichment
Show 75 more
  1. 2026-08-19 23:56 UTCVendor advisory
  2. 2026-08-19 23:56 UTCGHSA enrichment
  3. 2026-08-19 19:58 UTCEG score recompute
  4. 2026-08-19 19:58 UTCVendor advisory
  5. 2026-08-19 19:58 UTCGHSA enrichment
  6. 2026-08-19 17:33 UTCCISA KEV update
  7. 2026-08-19 17:00 UTCEPSS rescore
  8. 2026-08-19 16:00 UTCVendor advisory
  9. 2026-08-19 16:00 UTCGHSA enrichment
  10. 2026-08-19 12:02 UTCVendor advisory
  11. 2026-08-19 12:02 UTCGHSA enrichment
  12. 2026-08-19 08:03 UTCVendor advisory
  13. 2026-08-19 08:03 UTCGHSA enrichment
  14. 2026-08-19 04:06 UTCVendor advisory
  15. 2026-08-19 04:05 UTCGHSA enrichment
  16. 2026-08-19 00:05 UTCVendor advisory
  17. 2026-08-19 00:05 UTCGHSA enrichment
  18. 2026-08-18 20:07 UTCVendor advisory
  19. 2026-08-18 20:07 UTCGHSA enrichment
  20. 2026-08-18 16:58 UTCCISA KEV update
  21. 2026-08-18 16:09 UTCEG score recompute
  22. 2026-08-18 16:09 UTCVendor advisory
  23. 2026-08-18 16:08 UTCGHSA enrichment
  24. 2026-08-18 13:44 UTCEPSS rescore
  25. 2026-08-18 12:10 UTCVendor advisory
  26. 2026-08-18 12:09 UTCGHSA enrichment
  27. 2026-08-18 08:09 UTCGHSA enrichment
  28. 2026-08-18 04:08 UTCGHSA enrichment
  29. 2026-08-18 00:10 UTCVendor advisory
  30. 2026-08-18 00:09 UTCGHSA enrichment
  31. 2026-08-17 20:09 UTCVendor advisory
  32. 2026-08-17 20:09 UTCGHSA enrichment
  33. 2026-08-17 16:10 UTCVendor advisory
  34. 2026-08-17 16:10 UTCGHSA enrichment
  35. 2026-08-17 13:56 UTCCISA KEV update
  36. 2026-08-17 12:12 UTCVendor advisory
  37. 2026-08-17 12:12 UTCGHSA enrichment
  38. 2026-08-17 08:14 UTCVendor advisory
  39. 2026-08-17 08:14 UTCGHSA enrichment
  40. 2026-08-17 04:17 UTCVendor advisory
  41. 2026-08-17 04:17 UTCGHSA enrichment
  42. 2026-08-17 00:19 UTCVendor advisory
  43. 2026-08-17 00:19 UTCGHSA enrichment
  44. 2026-08-16 20:21 UTCVendor advisory
  45. 2026-08-16 20:21 UTCGHSA enrichment
  46. 2026-08-16 16:22 UTCEG score recompute
  47. 2026-08-16 16:22 UTCVendor advisory
  48. 2026-08-16 16:22 UTCGHSA enrichment
  49. 2026-08-16 14:52 UTCEPSS rescore
  50. 2026-08-16 12:24 UTCVendor advisory
  51. 2026-08-16 12:24 UTCGHSA enrichment
  52. 2026-08-16 08:27 UTCVendor advisory
  53. 2026-08-16 08:27 UTCGHSA enrichment
  54. 2026-08-16 04:29 UTCEG score recompute
  55. 2026-08-16 04:29 UTCVendor advisory
  56. 2026-08-16 04:29 UTCGHSA enrichment
  57. 2026-08-16 02:10 UTCEPSS rescore
  58. 2026-08-16 00:31 UTCVendor advisory
  59. 2026-08-16 00:31 UTCGHSA enrichment
  60. 2026-08-15 20:33 UTCVendor advisory
  61. 2026-08-15 20:33 UTCGHSA enrichment
  62. 2026-08-15 16:35 UTCVendor advisory
  63. 2026-08-15 16:35 UTCGHSA enrichment
  64. 2026-08-15 12:37 UTCVendor advisory
  65. 2026-08-15 12:37 UTCGHSA enrichment
  66. 2026-08-15 08:39 UTCVendor advisory
  67. 2026-08-15 08:39 UTCGHSA enrichment
  68. 2026-08-15 04:41 UTCEG score recompute
  69. 2026-08-15 04:41 UTCVendor advisory
  70. 2026-08-15 04:41 UTCGHSA enrichment
  71. 2026-08-15 01:26 UTCEPSS rescore
  72. 2026-08-15 00:42 UTCVendor advisory
  73. 2026-08-15 00:42 UTCGHSA enrichment
  74. 2026-08-14 20:45 UTCVendor advisory
  75. 2026-08-14 20:45 UTCGHSA enrichment

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (2 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCrip1s/CVE-2019-1458
    First seen Mar 11, 2020

    CVE-2019-1458 Windows LPE Exploit

    Open source ↗
  • Exploit-DBEDB-48180
    First seen Mar 3, 2020

    Microsoft Windows - 'WizardOpium' Local Privilege Escalation

    Open source ↗
  • GitHub PoCpiotrflorczyk/cve-2019-1458_POC
    First seen Mar 3, 2020

    POC for cve-2019-1458

    Open source ↗
  • Metasploitexploit/windows/local/cve_2019_1458_wizardopium✓ verified
    First seen Dec 10, 2019

    Microsoft Windows Uninitialized Variable Local Privilege Elevation

    Open source ↗

Related CVEs(same vendor)

Frequently asked(6)

What is CVE-2019-1458?
CVE-2019-1458 is a critical vulnerability published on December 10, 2019. 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'.
When was CVE-2019-1458 disclosed?
CVE-2019-1458 was first published in the National Vulnerability Database on December 10, 2019, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-1458 actively exploited?
Yes. CISA added CVE-2019-1458 to the Known Exploited Vulnerabilities catalog on January 10, 2022, affecting Microsoft Win32k. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2019-1458?
CVE-2019-1458 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2019-1458?
CVE-2019-1458 affects Microsoft Win32k. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2019-1458?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-1458, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2019-1458

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