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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2017-6327

Symantec Messaging Gateway Remote Code Execution Vulnerability

KEVHIGH 8.8EPSS 35.3%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
35.34% probability · 98th percentile
CISA KEV
Listed 3 November 2021 · due 3 May 2022
Weakness
CWE-77
Affected
symantec/message gateway
Source
secure@symantec.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-6327

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.