CVE-2017-6327VulnerabilityPublished 11/03/2021Updated 10/24/2026

CVE-2017-6327: Symantec Messaging Gateway Remote Code Execution Vulnerability

Affects Symantec Symantec Messaging GatewaySource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 11/03/2021
KEV deadline: 05/03/2022
EPSS: 35.9% chance of exploitation in 30 days – higher than 98% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2017-6327 (opens in a new tab)

Description

CVE-2017-6327 is a high-severity vulnerability in Symantec Messaging Gateway that allows remote code execution. This flaw enables attackers to execute arbitrary code remotely and potentially escalate privileges on the affected system. The vulnerability has been exploited in the wild, indicating active threat activity. No specific affected versions or patch information is provided in the available data.

Summary

Symantec Messaging Gateway contains an unspecified vulnerability (CVE-2017-6327) that permits remote code execution. Exploitation of this vulnerability can allow an attacker to run arbitrary code remotely and may lead to privilege escalation. The vulnerability is confirmed to have been exploited in the wild. No detailed technical specifics or affected version ranges are provided in the source data.

Impact

Successful exploitation of this vulnerability allows remote attackers to execute arbitrary code on the Symantec Messaging Gateway system, potentially leading to full system compromise including privilege escalation. This poses a significant risk to the confidentiality, integrity, and availability of the affected system.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Due to the lack of explicit patch or workaround information, users should monitor official Symantec advisories for updates and apply any provided fixes promptly.

Weaknesses

CWE-20Improper Input Validation (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 08:55:24 UTC

Weaknesses

References

Related threats