CISA KEV · Known exploitedHigh

CVE-2017-6327

Symantec Symantec Messaging Gateway

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: 8.8
EPSS: 35.3%
CISA KEV: Listed
Published: 2017.08.12

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability35.3%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: Symantec Symantec Messaging Gateway
Affected versions: All versions prior to version 10.6.3-267, < 10.6.3-267
Fixed versions: 10.6.3-267

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.03

1
Identify
Confirm that Symantec Symantec Messaging Gateway and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-20, CWE-77
KEV added: 2021.11.03
Ransomware use: 미확인