CVE-2013-3893: Microsoft Internet Explorer Resource Management Errors 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.
Microsoft Internet Explorer contains a memory corruption vulnerability that allows for remote code execution. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
CSIRTS triage
- What
- A memory corruption vulnerability allows for remote code execution.
- Who is affected
- Users of Microsoft Internet Explorer, which may be end-of-life or end-of-service.
- Urgency
- Remediation is urgent as the vulnerability is critical and has been exploited.
- Action
- Discontinue use of Internet Explorer and migrate to a supported browser.
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-2013-3893
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-2013-3893Already 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-2013-3893 | 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-2010-0249: Microsoft Internet Explorer Use-After-Free Vulnerabilitycisa-kev · 2026-05-20
- criticalexploitedCVE-2010-0806: 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-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
- criticalexploitedCVE-2012-4969: Microsoft Internet Explorer Use-After-Free Vulnerabilitycisa-kev · 2022-06-08
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