CVE-2020-1054

HIGHNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), 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
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 53%CVSS: 7.8Exploit: NoneExposed: 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 Windows kernel-mode driver fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1143.

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
98.9%
KEV
⚠ Exploited

Published

May 21, 2020

Last Modified

October 29, 2025

Advisory Details (3)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa, microsoft.
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-2020-1054
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-2020-1054
generic

Packet Storm

http://packetstormsecurity.com/files/160515/Microsoft-Windows-DrawIconEx-Local-Privilege-Escalation.html

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

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 87× in last 7d / 385× 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 705 total refreshes for this CVE.

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

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCKaLendsi/CVE-2020-1054
    First seen Jul 25, 2020
    Open source ↗
  • GitHub PoCIamgublin/CVE-2020-1054
    First seen Jul 19, 2020
    Open source ↗
  • GitHub PoC0xeb-bp/cve-2020-1054
    First seen Jun 16, 2020

    LPE for CVE-2020-1054 targeting Windows 7 x64

    Open source ↗
  • Metasploitexploit/windows/local/cve_2020_1054_drawiconex_lpe✓ verified
    First seen Feb 20, 2020

    Microsoft Windows DrawIconEx OOB Write Local Privilege Elevation

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2020-1054?
CVE-2020-1054 is a high vulnerability published on May 21, 2020. An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1143.
When was CVE-2020-1054 disclosed?
CVE-2020-1054 was first published in the National Vulnerability Database on May 21, 2020, with the most recent update on October 29, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-1054 actively exploited?
Yes. CISA added CVE-2020-1054 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Microsoft Win32k. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-1054?
CVE-2020-1054 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-2020-1054?
CVE-2020-1054 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-2020-1054?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-1054, 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-2020-1054

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