SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2016-3351

Microsoft Internet Explorer and Edge Information Disclosure Vulnerability

KEVMEDIUM 6.5EPSS 26.5%

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
26.48% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 24 May 2022 · due 14 June 2022 · used in ransomware campaigns
Affected
microsoft/internet explorer · microsoft/edge
Source
secure@microsoft.com
EPSS trend
0%15%30%26 October 2026: 26.48%26 October 202626 October 2026

EPSS 26.5% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

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, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.