HIGH SEVERITY

CVE-2008-4258

Internet Explorer vulnerability

CVSS
8.5
EPSS
17.8%
EPSS pct
97th
Exploited
No known
Microsoft Internet Explorer 5.01 SP4 and 6 SP1 does not properly validate parameters during calls to navigation methods, which allows remote attackers to execute arbitrary code via a crafted HTML document that triggers memory corruption, aka "Parameter Validation Memory Corruption Vulnerability."
Affected vendor
Microsoft
Affected product
Internet Explorer
CVSS vector
AV:N/AC:M/Au:S/C:C/I:C/A:C
Weakness type (CWE)
Published
2008-12-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring single-factor authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 17.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2008-4258

  • Confirm whether Microsoft Internet Explorer is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2008-4258.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2008-4258

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