CVE-1999-1520

Exp

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.

Published: 1999-05-11 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-1520 is rated High Exploit Risk (63.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 10.64%, 95th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-1520

EDB-ID Source Kind Published Link
19208 exploit_db edb 1999-05-11 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-1520

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 42.98% 10.64% -32.34%
2 2026-04-10 37.13% 42.98% +5.85%
3 2025-07-29 — 37.13% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-1520

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-1999-1520

Affected software / configurations for CVE-1999-1520

Vendor Product Version Raw CPE
microsoft site_server 3.0 cpe:2.3:a:microsoft:site_server:3.0:*:*:*:*:*:*:*

References for CVE-1999-1520

cvelogic Threat Intelligence