How severe is CVE-2016-3351?

CVE-2016-3351 has a CVSS 3.1 base score of 6.5 (MEDIUM). EPSS estimates a 26.5% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2016-3351: Microsoft Internet Explorer and Edge Information

CISA Known Exploited Vulnerabilities

Microsoft Internet Explorer and Edge Information Disclosure Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-05-24

Remediation due

2022-06-14

Ransomware

Known use

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2016-3351

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."

Severity

CVSS 3.1 · CISA6.5 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impactpartial

Exploitation Context

as of October 17, 2026

All KEV statistics→

CISA added CVE-2016-3351 to the KEV catalog 2,078 days after its CVE record was published.
It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 166 added in 2022.
Its current EPSS score (26.5%) is higher than that of 39% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

6 Links

Vendor advisories

Vulnerability databases

Other references

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

Record Details

Published

2016-09-14

Last updated

2026-08-14

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.