Buffer overflow in Microsoft Data Access Components
CVE-2012-1891
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."
Vulnerability class: Buffer Overflow
EPSS: 0.294 (98.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Data_access_components — versions 2.8
- Microsoft Windows_7
- Microsoft Windows_data_access_components — versions 6.0
- Microsoft Windows_server_2003
- Microsoft Windows_server_2008 — versions r2
- Microsoft Windows_vista
- Microsoft Windows_xp
- N/a — versions n/a
Weakness classification (CWE)
References
- secure@microsoft.com (US Government Resource, x_refsource_CERT, third-party-advisory)
- secure@microsoft.com (x_refsource_MS, vendor-advisory)
- secure@microsoft.com (signature, x_refsource_OVAL, vdb-entry)
Frequently asked questions
- What is CVE-2012-1891?
- CVE-2012-1891 is a critical-severity vulnerability in Microsoft Data Access Components, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2012-07-10.
- How severe is CVE-2012-1891?
- Critical severity. CVSS v3 base score is 9.8 out of 10.