SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2016-3351

Microsoft Internet Explorer and Edge Information Disclosure Vulnerability

KEVMEDIUM 6.5EPSS 26.3%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

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 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
26.29% probability · 98th percentile
CISA KEV
Listed 24 May 2022 · due 14 June 2022 · used in ransomware campaigns
Affected
microsoft/internet explorer · microsoft/edge
Source
secure@microsoft.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2016-3351

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.