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Fencer Vulns
critical 10.0

CVE-1999-1011 in the critical feed json

The Remote Data Service (RDS) DataFactory component of Microsoft Data Access Components (MDAC) in IIS 3.x and 4.x exposes unsafe methods, w…

published 1999-07-19 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0992

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
77.1%
EPSS 77.1% chance of exploitation in 30 days, percentile 99.5%
public exploits
3
Metasploit, Exploit-DB

Summary

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.

Timeline

  1. First public exploit (Metasploit exploit/windows/iis/msadc)
  2. Published

Exploit prediction

77.14% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/windows/iis/msadc MS99-025 Microsoft IIS MDAC msadcs.dll RDS Arbitrary Remote Command Execution metasploit exploit, excellent rank, 1998-07-17
  • EDB-19425 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) local, 1999-07-19
  • EDB-19424 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) remote, 1999-07-19

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.