CVE-2011-0027
Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2, and Windows Data Access Components (WDAC) 6.0, does not properly validate memory…
- 9.3HighCVSS base score
- 54.4%Exploitation in 30 daysEPSS · top 1.0% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- Microsoft Data Access Components - Remote Overflow (MS11-002) (Exploit-DB entry) (opens in a new tab)
EDB-ID 15984remote, windowspublished 12 Jan 2011Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By microsoft
- 33 days later
· 33 days later
Published
- 14 years later
· 14 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 54.4% · top 1.0% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Affected products
n/a
- affected n/a
References
11
- ADV-2011-0075 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 70444 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- MS11-002 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 1024947 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://vreugdenhilresearch.nl/ms11-002-pwn2own-heap-overflow/ (opens in a new tab)x_refsource_MISCx_transferred
- oval:org.mitre.oval:def:12411 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 42804 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 45698 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- TA11-011A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- http://www.zerodayinitiative.com/advisories/ZDI-11-002/ (opens in a new tab)x_refsource_MISCx_transferred
- http://support.avaya.com/css/P8/documents/100124846 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2011-0053 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-0027)Record last updated .