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Fencer Vulns
high 8.8

CVE-2017-6327 kev in the critical feed json

The Symantec Messaging Gateway before 10.6.3-267 can encounter an issue of remote code execution, which describes a situation whereby an in…

published 2017-08-11 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15388

cvss
8.8
version 3.1, CNA
cisa kev
Exploited
added 2021-11-03
epss
35.9%
EPSS 35.9% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • symantec message_gateway 10.6.3-267

Timeline

  1. Published
  2. First public exploit (EDB-42519)
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
5 y ago
Patch by
2022-05-03 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Symantec, Symantec Messaging Gateway
CISA name
Symantec Messaging Gateway Remote Code Execution Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

35.91% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-42519 Symantec Messaging Gateway 10.6.3-2 - Root Remote Command Execution webapps, 2017-08-18

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • Symantec Corporation Messaging Gateway

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.