CVE-2018-12243
8.8 · HIGHOverview
CVE-2018-12243 is a high-severity vulnerability affecting symantec messaging_gateway. It was published on September 19, 2018 and has a CVSS 3.0 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from symantec. Update messaging_gateway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| symantec | messaging_gateway | >= 0, < 10.6.6 | Affected |
Frequently Asked Questions
What is CVE-2018-12243?
CVE-2018-12243 is a high-severity vulnerability affecting symantec messaging_gateway. It was published on September 19, 2018 and has a CVSS 3.0 base score of 8.8 (HIGH).
How severe is CVE-2018-12243?
This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-12243?
Check the references section for vendor advisories and patches from symantec. Update messaging_gateway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-12243?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-12243 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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