CVE-2018-12243

8.8 highEPSS 0.8%

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.

Severity

CVSS 3.0

8.8 high

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-611
Published: 2018-09-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

symantec:messaging_gateway

References

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

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