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CVE-2012-1891

CRITICAL · CVSS 9.8EPSS 29.4%EU EUVD

Heap-based buffer overflow in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2 and Windows Data Access Components (WDAC) 6.0 allows remote attackers to execute arbitrary code via crafted XML data that triggers access to an uninitialized object in memory, aka "ADO Cachesize Heap Overflow RCE Vulnerability."

Key facts

CVSS score
9.8 (v3.1)
Severity
CRITICAL
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-119
EPSS score
29.4% (98th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2012-1901)
Published
July 10, 2012
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-1901 in the EU Vulnerability Database. Last updated in EUVD on October 17, 2024.

View on the EU Vulnerability Database

Affected products

  • microsoft / data access components
  • microsoft / data access components
  • microsoft / windows 7
  • microsoft / windows 7
  • microsoft / windows 7
  • microsoft / windows 7
  • microsoft / windows 7
  • microsoft / windows 7
  • microsoft / windows 7
  • microsoft / windows data access components
  • microsoft / windows server 2003
  • microsoft / windows server 2008
  • microsoft / windows server 2008
  • microsoft / windows server 2008
  • microsoft / windows server 2008
  • microsoft / windows server 2008
  • microsoft / windows vista
  • microsoft / windows vista
  • microsoft / windows vista
  • microsoft / windows xp
  • microsoft / windows xp

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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