CVE-2017-0149

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-05-24), 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 — 5 sources updated this weekExploited in the wild
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 29%CVSS: 8.8Exploit: NoneExposed: 0

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

Microsoft Internet Explorer 9 through 11 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability." This vulnerability is different from those described in CVE-2017-0018 and CVE-2017-0037.

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
98.0%
KEV
⚠ Exploited

Published

March 17, 2017

Last Modified

April 22, 2026

Advisory Details (3)

Auto-updated May 2, 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-2017-0149
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-2017-0149
generic
http://www.securityfocus.com/bid/96724

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 92× in last 7d / 395× 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 740 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2017-0149?
CVE-2017-0149 is a high vulnerability published on March 17, 2017. Microsoft Internet Explorer 9 through 11 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability." This vulnerability is different from those described in CVE-2017-0018 and…
When was CVE-2017-0149 disclosed?
CVE-2017-0149 was first published in the National Vulnerability Database on March 17, 2017, 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-2017-0149 actively exploited?
Yes. CISA added CVE-2017-0149 to the Known Exploited Vulnerabilities catalog on May 24, 2022, affecting Microsoft Internet Explorer. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2017-0149?
CVE-2017-0149 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-2017-0149?
CVE-2017-0149 affects Microsoft Internet Explorer. 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-2017-0149?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-0149, 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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