CVE-2014-4148

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 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: 60%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pct · epss highExposed: 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, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code via a crafted TrueType font, as exploited in the wild in October 2014, aka "TrueType Font Parsing Remote Code Execution Vulnerability."

CVSS v3
8.8
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
60%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

October 15, 2014

Last Modified

April 22, 2026

Advisory Details (5)

Auto-updated May 2, 2026
No patch confirmed yet.
generic

IBM X-Force Exchange

https://exchange.xforce.ibmcloud.com/vulnerabilities/96995
generic

Microsoft Security Bulletin MS14-058 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-058
generic
http://www.securityfocus.com/bid/70429
generic

About Secunia Research | Flexera

http://secunia.com/advisories/60970
generic

Archived MSDN and TechNet Blogs | Microsoft Learn

http://blogs.technet.com/b/srd/archive/2014/10/14/accessing-risk-for-the-october-2014-security-updates.aspx

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 51× in last 7d / 221× 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 883 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2014-4148?
CVE-2014-4148 is a critical vulnerability published on October 15, 2014. win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code via a crafted…
When was CVE-2014-4148 disclosed?
CVE-2014-4148 was first published in the National Vulnerability Database on October 15, 2014, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-4148 actively exploited?
Yes. CISA added CVE-2014-4148 to the Known Exploited Vulnerabilities catalog on May 25, 2022, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2014-4148?
CVE-2014-4148 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2014-4148?
CVE-2014-4148 affects Microsoft Windows. 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-2014-4148?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-4148, 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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