CVE-1999-1520

Site Server vulnerability

CVSS

5.0

EPSS

10.6%

EPSS pct

95th

Exploited

No known

A configuration problem in the Ad Server Sample directory (AdSamples) in Microsoft Site Server 3.0 allows an attacker to obtain the SITE.CSC file, which exposes sensitive SQL database information.

Affected vendor

Microsoft

Affected product

Site Server

CVSS vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Published

1999-05-11

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 10.6% 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-1999-1520

Confirm whether Microsoft Site Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-1999-1520.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-1999-1520

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-1999-1520 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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