Known exploited · Microsoft
CVE-2016-3351: Microsoft Internet Explorer and Edge Information Disclosure Vulnerability
What it is
An information disclosure vulnerability exists in the way that certain functions in Internet Explorer and Edge handle objects in memory. The vulnerability could allow an attacker to detect specific files on the user's computer.
- Vendor
- Microsoft
- Product
- Internet Explorer and Edge
- Added to KEV
- May 24, 2022
- CISA due date
- June 14, 2022
- Ransomware use
- Known
What CISA requires
Apply updates per vendor instructions.
Forensic triage
No
What to do now
- Find every instance of Internet Explorer and Edge you run, including the forgotten ones, and check its version against the vendor advisory.
- Apply the vendor's fix or mitigation, before June 14, 2022 if you are bound by CISA's deadline, sooner if it faces the internet.
- Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.
References
H2 Security
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Start freeSource: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.