CVE-2015-1701

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 2022-03-03), 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 — 4 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: 56%CVSS: 7.8Exploit: cisa kev · ssvc active · kev ransomware · Metasploit · Exploit-DB (verified) · 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.

Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, 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
56%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

April 21, 2015

Last Modified

August 14, 2026

Advisory Details (6)

Auto-updated May 19, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🟡 PoC Available

Full Disclosure: KL-001-2020-002 : Cellebrite Restricted Desktop Escape and Escalation of User Privilege

http://seclists.org/fulldisclosure/2020/May/34
generic🔴 Active Exploitation

Microsoft Windows - ClientCopyImage Win32k (MS15-051) (Metasploit) - Windows local Exploit

https://www.exploit-db.com/exploits/37367/
generic🟡 PoC Available

Microsoft Windows - Local Privilege Escalation (MS15-051) - Windows local Exploit

https://www.exploit-db.com/exploits/37049/
generic

Microsoft Security Bulletin MS15-051 - Important | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-051
generic
http://www.securitytracker.com/id/1032155
generic
http://www.securityfocus.com/bid/74245

Data Freshness Timeline

(refreshed 53× in last 7d / 200× 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 588 total refreshes for this CVE.

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

Publicly available exploits

(4 references)

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

  • Exploit-DBEDB-37367✓ verified
    First seen Jun 24, 2015

    Microsoft Windows - ClientCopyImage Win32k (MS15-051) (Metasploit)

    Open source ↗
  • Exploit-DBEDB-37049✓ verified
    First seen May 18, 2015

    Microsoft Windows - Local Privilege Escalation (MS15-051)

    Open source ↗
  • GitHub PoChfiref0x/CVE-2015-1701
    First seen May 12, 2015

    Win32k LPE vulnerability used in APT attack

    Open source ↗
  • Metasploitexploit/windows/local/ms15_051_client_copy_image✓ verified
    First seen May 12, 2015

    Windows ClientCopyImage Win32k Exploit

    Open source ↗

Frequently asked(6)

What is CVE-2015-1701?
CVE-2015-1701 is a critical vulnerability published on April 21, 2015. Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, aka "Win32k Elevation of Privilege Vulnerability."
When was CVE-2015-1701 disclosed?
CVE-2015-1701 was first published in the National Vulnerability Database on April 21, 2015, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-1701 actively exploited?
Yes. CISA added CVE-2015-1701 to the Known Exploited Vulnerabilities catalog on March 3, 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-2015-1701?
CVE-2015-1701 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-2015-1701?
CVE-2015-1701 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-2015-1701?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-1701, 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.

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