What’s Vulnerable › Vulnerabilities

CVE-2012-1891

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 29.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-07-10 · updated 2026-06-16
• Weakness: CWE-119

Description

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."

Affected products

• Microsoft Data Access Components: 2.8-sp1, 2.8-sp2
• Microsoft Windows Data Access Components: 6.0

References

• http://www.us-cert.gov/cas/techalerts/TA12-192A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-045
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14783
• http://www.us-cert.gov/cas/techalerts/TA12-192A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-045
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14783

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