CVE-1999-1520

NONECVSS 0.0Weaponized

0.0

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.

CVSS v3: —
EG Score: —
EPSS: 97.5%
KEV: Not listed

Published

May 11, 1999

Last Modified

April 16, 2026

References (6)

cve@mitrehttp://marc.info/?l=bugtraq&m=92647407227303&w=2
cve@mitrehttp://www.securityfocus.com/bid/256
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/2270
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=92647407227303&w=2
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/256
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/2270

Data Freshness Timeline

(refreshed 12× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
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2026-05-26 07:16 UTCepss_batch
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2026-05-22 21:15 UTCepss_batch
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2026-05-18 21:29 UTCepss_batch
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-19208✓ verified
First seen May 11, 1999
Microsoft Site Server Commerce Edition 3.0 alpha - AdSamples Sensitive Information
Open source ↗

Frequently asked(4)

What is CVE-1999-1520?

CVE-1999-1520 is a none vulnerability published on May 11, 1999. 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.

When was CVE-1999-1520 disclosed?

CVE-1999-1520 was first published in the National Vulnerability Database on May 11, 1999, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-1999-1520 actively exploited?

CVE-1999-1520 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-1520?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-1520, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-1999-1520

📅 Published

🔄 Last Modified

🔗 References (6)