CVE-2011-0027

Exp

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.

Published: 2011-01-12 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-0027 is rated High Exploit Risk (82.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 67.61%, 99th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2011-0027

EDB-ID Source Kind Published Link
15984 exploit_db edb 2011-01-12 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-0027

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-28 71.93% 67.61% -4.32%
2 2025-12-27 67.61% 71.93% +4.32%
3 2025-10-28 — 67.61% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-0027

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2011-0027

Affected software / configurations for CVE-2011-0027

Vendor Product Version Raw CPE
microsoft data_access_components 2.8 cpe:2.3:a:microsoft:data_access_components:2.8:sp1:*:*:*:*:*:*
microsoft data_access_components 2.8 cpe:2.3:a:microsoft:data_access_components:2.8:sp2:*:*:*:*:*:*
microsoft windows_data_access_components 6.0 cpe:2.3:a:microsoft:windows_data_access_components:6.0:*:*:*:*:*:*:*

References for CVE-2011-0027

cvelogic Threat Intelligence