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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.294 (98.2th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.294 · newest: 0.294 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.us-cert.gov/cas/techalerts/TA12-192A.html (US Government Resource, third-party-advisory)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-045 (vendor-advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:14783 (signature, 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.