CVE-2017-6327

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2021-11-03. Federal remediation due 2022-05-03.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

35.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.3% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2017-08-11 20:00Z9 YR AGO

Last updated

2025-10-21 23:55Z10 MO AGO

Reserved

2017-02-26

Assigning CNA

symantec

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class

Data version

5.1

Document digest

d1d241adcc1c375814718561973a2bf7a0b66223d3555a94eb439494ec3119e5

• seclists.org20170817 CVE-2017-6327: Symantec Messaging Gateway <= 10.6.3-2 unauthenticated root RCEhttp://seclists.org/fulldisclosure/2017/Aug/28mailing-listx_refsource_FULLDISC
• www.exploit-db.com42519https://www.exploit-db.com/exploits/42519/exploitx_refsource_EXPLOIT-DB
• www.securityfocus.com100135http://www.securityfocus.com/bid/100135vdb-entryx_refsource_BID
• www.symantec.comhttps://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20170810_00x_refsource_CONFIRM
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6327government-resource