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CVE-2020-0674: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

criticalknown exploitedpublic exploitCVE-2020-0674
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 due to the way the Scripting Engine handles objects in memory. Successful exploitation could allow remote code execution in the context of the current user.

CSIRTS triage

vendor: Microsoftproduct: Internet ExplorerMemory corruptionRemote code execution
What
The Scripting Engine in Internet Explorer has a memory corruption vulnerability.
Who is affected
Users of Microsoft Internet Explorer.
Urgency
Immediate action is required due to active exploitation and critical severity.
Action
Update to the latest version of Internet Explorer.

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
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-0674

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-2020-0674coverage & 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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