Symantec Messaging Gateway Remote Code Execution Vulnerability

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• cpe symantec/message gatewayversion unspecified
• vendor Symantec Symantec Messaging Gatewayversion unspecified

How to fix CVE-2017-6327

• Recommended remediation

  Apply updates per vendor instructions. CISA due date May 3, 2022.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Aug 11, 2017 · Catalog

   Detected

   The Symantec Messaging Gateway before 10.6.3-267 can encounter an issue of remote code execution, which describes a situation whereby an individual may obtain the ability to execute commands remotely on a target machine or in a target process. In this type of occurrence, after gaining access to the system, the attacker may attempt to elevate their privileges.

2. Nov 3, 2021 · CISA KEV

   Known exploited

   Apply updates per vendor instructions.

3. May 3, 2022 · CISA KEV

   Remediation due

   Apply updates per vendor instructions.

4. Jun 16, 2026 · Catalog

   Updated

   The Symantec Messaging Gateway before 10.6.3-267 can encounter an issue of remote code execution, which describes a situation whereby an individual may obtain the ability to execute commands remotely on a target machine or in a target process. In this type of occurrence, after gaining access to the system, the attacker may attempt to elevate their privileges.

Sources

• CISA KEVConfirmed exploitationCVE-2017-6327

  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.

  cisa.gov
• CVE.orgVulnerability recordCVE-2017-6327

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2017-6327

  30-day exploitation probability 35.9%

  first.org
• Exploit DatabasePublic exploit reference42519

  Public archive entry. The exploit body is not stored here.

  exploit-db.com
• NIST NVDVulnerability recordCVE-2017-6327

  The Symantec Messaging Gateway before 10.6.3-267 can encounter an issue of remote code execution, which describes a situation whereby an individual may obtain the ability to execute commands remotely on a target machine or in a target process. In this type of occurrence, after ga

  nvd.nist.gov
• VulnCheck KEVConfirmed exploitationCVE-2017-6327

  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.

  vulncheck.com

References

• Mailing List · seclists.org
• Broken Link · securityfocus.com
• VulnCheck exploitation evidence · cisa.gov
• VulnCheck exploitation evidence · media.defense.gov
• CISA note · nvd.nist.gov
• VulnCheck exploitation evidence · us-cert.cisa.gov
• VulnCheck exploitation evidence · cisa.gov
• Third Party Advisory · exploit-db.com
• Vendor Advisory · symantec.com

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.