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CVE-2017-6327

Symantec Messaging Gateway Remote Code Execution

8.8 HIGHActively exploited (CISA KEV)EPSS 35.9%
  1. Published11 Aug 2017
  2. Added to CISA KEV3 Nov 2021
  3. Remediation due3 May 2022
Actively exploited (CISA KEV)

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.

Added to KEV: 3 Nov 2021Federal remediation due: 3 May 2022

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Symantec Message Gateway< 10.6.3-267

Remediation

Fixed in
Symantec Message Gateway≥ 10.6.3-267

References

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Frequently asked

Is CVE-2017-6327 being actively exploited?

Yes. CVE-2017-6327 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Nov 2021.

How severe is CVE-2017-6327?

CVE-2017-6327 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 35.9% probability of exploitation.

Which products are affected by CVE-2017-6327?

Affected products include Symantec Message Gateway.

How do I fix CVE-2017-6327?

Upgrade affected software to a fixed version, for example Symantec Message Gateway 10.6.3-267 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2017-6327 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.