CVE-2016-3351: Microsoft Internet Explorer and Edge Information Disclosure Vulnerability
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.
CSIRTS triage
- What
- Certain functions in Internet Explorer and Edge improperly handle objects in memory, allowing information disclosure.
- Who is affected
- Users of Microsoft Internet Explorer and Edge.
- Urgency
- Immediate action is required due to active exploitation and critical severity.
- Action
- Update to the latest versions of Internet Explorer and Edge.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2016-3351
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2016-3351Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 98% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2016-3351 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Microsoft Internet Explorer
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- criticalexploitedCVE-2010-0806: Microsoft Internet Explorer Use-After-Free Vulnerabilitycisa-kev · 2026-05-20
- criticalexploitedCVE-2010-0249: Microsoft Internet Explorer Use-After-Free Vulnerabilitycisa-kev · 2026-05-20
- criticalexploitedCVE-2010-3962: Microsoft Internet Explorer Uninitialized Memory Corruption Vulnerabilitycisa-kev · 2025-10-06
- criticalexploitedCVE-2013-3893: Microsoft Internet Explorer Resource Management Errors Vulnerabilitycisa-kev · 2025-08-12
- criticalexploitedCVE-2012-4792: Microsoft Internet Explorer Use-After-Free Vulnerabilitycisa-kev · 2024-07-23
- criticalexploitedCVE-2013-3163: Microsoft Internet Explorer Memory Corruption Vulnerabilitycisa-kev · 2023-03-30
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