CVE-2016-3351

CRITICALNVD 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 26%CVSS: 6.5Exploit: cisa kev · ssvc active · kev ransomware · epss top5pctExposed: 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 PROB
26%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

September 14, 2016

Last Modified

August 14, 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 101× in last 7d / 416× 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 1,600 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2016-3351?
CVE-2016-3351 is a critical 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 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-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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