CVE-2016-3351

MEDIUMNVD 6.59.0▲
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 6.5 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
6.5
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 26%CVSS: 6.5Exploit: 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 and Microsoft Edge allow remote attackers to obtain sensitive information via a crafted web site, aka "Microsoft Browser Information Disclosure Vulnerability."

CVSS v3
6.5
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
97.8%
KEV
⚠ Exploited

Published

September 14, 2016

Last Modified

April 22, 2026

Advisory Details (6)

Auto-updated May 20, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Microsoft Security Bulletin MS16-104 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-104
generic
http://www.securitytracker.com/id/1036789
generic
http://www.securitytracker.com/id/1036788
generic
http://www.securityfocus.com/bid/92788
generic🟡 PoC Available

Detecting analysts before installing the malware (IE)

https://www.brokenbrowser.com/detecting-apps-mimetype-malware/
generic

Microsoft Security Bulletin MS16-105 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-105

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 73× in last 7d / 382× 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 752 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2016-3351?
CVE-2016-3351 is a medium vulnerability published on September 14, 2016. Microsoft Internet Explorer 9 through 11 and Microsoft Edge allow remote attackers to obtain sensitive information via a crafted web site, aka "Microsoft Browser Information Disclosure Vulnerability."
When was CVE-2016-3351 disclosed?
CVE-2016-3351 was first published in the National Vulnerability Database on September 14, 2016, 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-2016-3351 actively exploited?
Yes. CISA added CVE-2016-3351 to the Known Exploited Vulnerabilities catalog on May 24, 2022, affecting Microsoft Internet Explorer and Edge. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2016-3351?
CVE-2016-3351 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2016-3351?
CVE-2016-3351 affects Microsoft Internet Explorer and Edge. 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-2016-3351?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-3351, 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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