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CVE-2013-2551: Microsoft Internet Explorer Use-After-Free Vulnerability

criticalknown exploitedpublic exploitCVE-2013-2551
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.
Use-after-free vulnerability in Microsoft Internet Explorer allows remote attackers to execute remote code via a crafted web site that triggers access to a deleted object.

CSIRTS triage

vendor: Microsoftproduct: Internet ExplorerRemote code execution
What
A use-after-free vulnerability in Microsoft Internet Explorer allows remote attackers to execute remote code via a crafted website.
Who is affected
Users of Microsoft Internet Explorer with vulnerable versions.
Urgency
Immediate remediation is necessary 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

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-28
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2013-2551

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2013-2551coverage & exploitation statusNVD · 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.

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