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Exploited· due 2022-06-146.5mediumMediumused in ransomware

CVE-2016-3351

Microsoft Internet Explorer

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."

Exploitation status

  • CISA has confirmed this is being exploited in the wild. That is an observation of real attacks, not a prediction.
  • It is known to have been used in ransomware campaigns.
  • US federal civilian agencies are required to remediate it by 2022-06-14. That deadline does not bind private companies, but it is a reasonable benchmark for how urgently CISA views it.
  • A vendor advisory or patch reference has been published.

Required action

Apply updates per vendor instructions.

CISA’s wording, unedited.

What the metrics mean

  • It is reachable over a network, without needing local access.
  • For an attacker who can reach it, no special conditions are needed to exploit it.
  • To exploit it, no account is needed.
  • Beyond that, someone has to be persuaded to take an action first.

Scoring

CVSS
6.5 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Assigned by
secure@microsoft.com

Dates

Published
2016-09-14
Last modified
2026-08-14
Added to KEV
2022-05-24
Remediation due
2022-06-14
Sources
CISA KEV, NVD

Affected products

  • Microsoft Internet Explorer9, 10, 11
  • Microsoft Windows Server 2008all versions, r2
  • Microsoft Windows Vistaall versions
  • Microsoft Windows Server 2012all versions, r2
  • Microsoft Windows 10 1507all versions
  • Microsoft Windows 10 1511all versions
  • Microsoft Windows 10 1607all versions
  • Microsoft Windows 7all versions
  • Microsoft Windows 8.1all versions
  • Microsoft Windows Rt 8.1all versions
  • Microsoft Edgeall versions

As listed in the NVD configuration data. Not a statement about your estate.

References