CVE-1999-1011

NONECVSS 0.0Weaponized

0.0

The Remote Data Service (RDS) DataFactory component of Microsoft Data Access Components (MDAC) in IIS 3.x and 4.x exposes unsafe methods, which allows remote attackers to execute arbitrary commands.

CVSS v3: —
EG Score: —
EPSS: 99.1%
KEV: Not listed

Published

July 19, 1999

Last Modified

April 16, 2026

References (10)

cve@mitrehttp://www.ciac.org/ciac/bulletins/j-054.shtml
cve@mitrehttp://www.osvdb.org/272
cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-004
cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-025
cve@mitrehttps://www.securityfocus.com/bid/529
af854a3a-2127-422b-91ae-364da2661108http://www.ciac.org/ciac/bulletins/j-054.shtml
af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/272
af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-004
af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-025
af854a3a-2127-422b-91ae-364da2661108https://www.securityfocus.com/bid/529

Data Freshness Timeline

(refreshed 4× in last 7d / 9× 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.

2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-19425✓ verified
First seen Jul 19, 1999
Microsoft Data Access Components (MDAC) 2.1 / Microsoft IIS 3.0/4.0 / Microsoft Index Server 2.0 / Microsoft Site Server Commerce Edition 3.0 i386 MDAC - RDS (2)
Open source ↗
Exploit-DBEDB-19424✓ verified
First seen Jul 19, 1999
Microsoft Data Access Components (MDAC) 2.1 / Microsoft IIS 3.0/4.0 / Microsoft Index Server 2.0 / Microsoft Site Server Commerce Edition 3.0 i386 MDAC - RDS (1)
Open source ↗
Metasploitexploit/windows/iis/msadc✓ verified
First seen Jul 17, 1998
MS99-025 Microsoft IIS MDAC msadcs.dll RDS Arbitrary Remote Command Execution
Open source ↗

Frequently asked(4)

What is CVE-1999-1011?

CVE-1999-1011 is a none vulnerability published on July 19, 1999. The Remote Data Service (RDS) DataFactory component of Microsoft Data Access Components (MDAC) in IIS 3.x and 4.x exposes unsafe methods, which allows remote attackers to execute arbitrary commands.

When was CVE-1999-1011 disclosed?

CVE-1999-1011 was first published in the National Vulnerability Database on July 19, 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-1999-1011 actively exploited?

CVE-1999-1011 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-1999-1011?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-1011, 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.

Dependency Blast Radius

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CVE-1999-1011

📅 Published

🔄 Last Modified

🔗 References (10)