CVE-2017-0263

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 2022-02-10), 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: 10%CVSS: 7.8Exploit: cisa kev · ssvc active · epss top5pct · public exploitExposed: 0

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

The kernel-mode drivers in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow local users to gain privileges via a crafted application, 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
10%
EPSS %ILE
95%
KEV
⚠ Exploited

Published

May 12, 2017

Last Modified

June 17, 2026

Advisory Details (5)

Auto-updated May 19, 2026
🔬 Proof of concept available. Patch available. Sources: microsoft.
generic🟡 PoC Available

From CVE-2017-0263 To Windows Menu Manager - 小刀志

https://xiaodaozhi.com/exploit/117.html
generic🟡 PoC Available

Microsoft Windows Manager (7 x86) - Menu Management Component UAF Privilege Elevation - Windows_x86 local Exploit

https://www.exploit-db.com/exploits/44478/
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-2017-0263
generic
http://www.securitytracker.com/id/1038449
generic
http://www.securityfocus.com/bid/98258

Weakness Classification(1)

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 90× in last 7d / 380× 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 1,112 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-44478
    First seen Mar 26, 2018

    Microsoft Windows Manager (7 x86) - Menu Management Component UAF Privilege Elevation

    Open source ↗

Frequently asked(6)

What is CVE-2017-0263?
CVE-2017-0263 is a critical vulnerability published on May 12, 2017. The kernel-mode drivers in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow local users to gain privileges via a crafted application, aka "Win32k Elevation of…
When was CVE-2017-0263 disclosed?
CVE-2017-0263 was first published in the National Vulnerability Database on May 12, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-0263 actively exploited?
Yes. CISA added CVE-2017-0263 to the Known Exploited Vulnerabilities catalog on February 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-2017-0263?
CVE-2017-0263 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-2017-0263?
CVE-2017-0263 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-2017-0263?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-0263, 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

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