CVE-2016-0189: Microsoft Internet Explorer Memory Corruption 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.
The Microsoft JScript nd VBScript engines, as used in Internet Explorer and other products, allow attackers to execute remote code or cause a denial of service (memory corruption) via a crafted web site.
CSIRTS triage
- What
- The Microsoft JScript and VBScript engines allow attackers to execute remote code or cause a denial of service via a crafted website.
- Who is affected
- Users of Internet Explorer and other products using these engines.
- Urgency
- Remediation is urgent due to active exploitation and critical severity.
- Action
- Update Internet Explorer to the latest version.
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-2016-0189
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-2016-0189Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2016-0189 | 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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