HIGH SEVERITY

CVE-2006-3652

Isa Server vulnerability

CVSS
7.5
EPSS
18.9%
EPSS pct
97th
Exploited
No known
Microsoft Internet Security and Acceleration (ISA) Server 2004 allows remote attackers to bypass file extension filters via a request with a trailing "#" character. NOTE: as of 20060715, this could not be reproduced by third parties.
Affected vendor
Microsoft
Affected product
Isa Server
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published
2006-07-18

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 confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 18.9% 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-2006-3652

  • Confirm whether Microsoft Isa Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2006-3652.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-3652

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2006-3652 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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