CVE-2017-6327

Name: CVE-2017-6327
Creator: NVD / NIST
Published: 2017-08-11T20:29:00.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 35.34%

Last modified Jun 17, 2026

CVE-2017-6327 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 35.34% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

35.34%

98.2th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Symantec	Message Gateway	< 10.6.3-267

References

http://seclists.org/fulldisclosure/2017/Aug/28Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/100135Broken Link, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/42519/Third Party Advisory, VDB Entry
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20170810_00Vendor Advisory
http://seclists.org/fulldisclosure/2017/Aug/28Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/100135Broken Link, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/42519/Third Party Advisory, VDB Entry
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20170810_00Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6327US Government Resource

Timeline

Published: Aug 11, 2017
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2017-6327?

How severe is CVE-2017-6327?

CVE-2017-6327 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 35.34% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2017-6327?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-6327?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST