HOMEVULNERABILITIESCVE-2013-3893
HIGHCISA KEVIN THE WILD

CVE-2013-3893

Published: August 12, 2025

EPSS:81.21%probability of exploitation in 30 daysPercentile:99.1th

Official Description

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.

NVD Source

CISA KEV Advisory

Microsoft Internet Explorer Resource Management Errors Vulnerability

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.

Added to KEV: 2025-08-12Federal patch deadline: 2025-09-02
Required Action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Risk Analysis

A memory corruption flaw in Microsoft Internet Explorer allows for remote code execution. With an EPSS score of 0.81212 and confirmed exploitation, this is a severe vulnerability, especially as affected products may be end-of-life.

This vulnerability has been actively exploited in the wild and is part of CISA's KEV catalog, indicating a high probability of successful attacks. The remote code execution capability makes it a critical threat.

Recommended Action

Users should immediately discontinue the use of Microsoft Internet Explorer, especially if it is an end-of-life product. Migrate to a currently supported and patched web browser to mitigate this risk.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2013-3893 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2013-3893 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Affected Vendors & Products

Mentioned vendors (from description):
Microsoft
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
External links open in a new tab. Always verify in a controlled environment before use.

All References (2)

Quick Facts

CVE IDCVE-2013-3893
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)81.21%
PublishedAug 12, 2025

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2013-3893 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
  • !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
  • !Active exploitation confirmed — treat as P1
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.