THREATPORT/VULNERABILITY/CVE-2001-0643
MEDIUM SEVERITY

CVE-2001-0643

Internet Explorer vulnerability

CVSS
5.0
EPSS
10.4%
EPSS pct
95th
Exploited
No known
Internet Explorer 5.5 does not display the Class ID (CLSID) when it is at the end of the file name, which could allow attackers to trick the user into executing dangerous programs by making it appear that the document is of a safe file type.
Affected vendor
Microsoft
Affected product
Internet Explorer
CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:N
Published
2001-09-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to integrity.

Its EPSS score of 10.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2001-0643

  • Confirm whether Microsoft Internet Explorer is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2001-0643.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2001-0643

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2001-0643 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2001-0643?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2001-0643.

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