MEDIUM SEVERITY

CVE-1999-0736

Internet Information Server vulnerability

CVSS
5.0
EPSS
44.8%
EPSS pct
99th
Exploited
No known
The showcode.asp sample file in IIS and Site Server allows remote attackers to read arbitrary files.
Affected vendor
Microsoft
Affected product
Internet Information Server
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Published
1999-05-07

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.

Its EPSS score of 44.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-1999-0736

  • Confirm whether Microsoft Internet Information Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-1999-0736.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-1999-0736

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-1999-0736 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-1999-0736?

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