CVE-2010-0249
Actively exploited. CVE-2010-0249 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-05-20) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2010-0249 is indexed in Metasploit and Exploit-DB. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
CSIRTS triage
- What
- Microsoft Internet Explorer contains a use-after-free vulnerability that could allow remote attackers to execute arbitrary code.
- Who is affected
- Users of Microsoft Internet Explorer, which may be end-of-life or end-of-service.
- Urgency
- Remediation is critical as the product may no longer receive updates and the vulnerability is actively exploited.
- Action
- Users should 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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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2010-0249 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- MetasploitA Metasploit Framework module targets this CVE — weaponized, point-and-click exploitation.look it up ↗
- Exploit-DBA public exploit is published in the Exploit-DB archive.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2010-0249: Microsoft Internet Explorer Use-After-Free Vulnerabilitycisa-kev · 2026-05-20
External references
Embed the live status
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[](https://www.csirts.com/cve/CVE-2010-0249)