{"cve":"CVE-2012-1891","nvd":{"published":"2012-07-10T21:55:06.150","modified":"2026-06-16T23:40:30.237","status":"Modified","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.\"","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-119","CWE-908"],"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"],"products":["microsoft:data_access_components","microsoft:windows_data_access_components"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2012-1891","score":0.29406,"percentile":0.9818,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}