CVE-2011-0027: microsoft data_access_components Improper Input Validation
Vulnerability summary
CVE-2011-0027 is a high (CVSS 9.3) Improper Input Validation vulnerability in microsoft data_access_components. EPSS estimates a 54.37% chance of exploitation in the next 30 days, higher than 99% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 12-01-2011PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2, and Windows Data Access Components (WDAC) 6.0, does not properly validate memory allocation for internal data structures, which allows remote attackers to execute arbitrary code, possibly via a large CacheSize property that triggers an integer wrap and a buffer overflow, aka "ADO Record Memory Vulnerability." NOTE: this might be a duplicate of CVE-2010-1117 or CVE-2010-1118.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
54.37%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 54.37% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundMicrosoft Data Access Components - Remote Overflow (MS11-002)
Maturity: weaponized
Weaknesses
CWE · root causeAffected systems
Microsoft2 products
- data_access_components2.8:sp1 | 2.8:sp2
- windows_data_access_components6.0
1 vendor · 2 products
References
11 links
docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-002Vendor AdvisoryX Refsource MS- vreugdenhilresearch.nl/ms11-002-pwn2own-heap-overflow/X Refsource MISC
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12411VDB EntrySignatureX Refsource OVAL
- www.us-cert.gov/cas/techalerts/TA11-011A.htmlThird Party AdvisoryX Refsource CERTUS Government Resource
- www.zerodayinitiative.com/advisories/ZDI-11-002/X Refsource MISC
Show all 11 references
- support.avaya.com/css/P8/documents/100124846X Refsource CONFIRM