CVE-2017-6327Actively exploitedAdded to KEV 2021-11-03

Symantec Messaging Gateway Remote Code Execution Vulnerability

Symantec, Symantec Messaging Gateway

Description

Symantec Messaging Gateway contains an unspecified vulnerability which can allow for remote code execution. With the ability to perform remote code execution, an attacker may also desire to perform privilege escalating actions.

CVSS severity for this advisory hasn't been enriched from NVD yet, check back shortly.

EPSS, exploit probability

High

35.9%

estimated chance of real-world exploitation in the next 30 days, higher than 98.5% of every CVE FIRST.org scores

Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-05-03

CWE-20

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