THREATPORT/VULNERABILITY/CVE-2018-5234
HIGH SEVERITY

CVE-2018-5234

Norton Core Firmware vulnerability

CVSS
8.0
EPSS
16.7%
EPSS pct
97th
Exploited
No known
The Norton Core router prior to v237 may be susceptible to a command injection exploit. This is a type of attack in which the goal is execution of arbitrary commands on the host system via vulnerable software.
Affected vendor
Symantec
Affected product
Norton Core Firmware
CVSS vector
CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2018-04-30

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable from an adjacent network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 16.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2018-5234

  • Confirm whether Symantec Norton Core Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-5234.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-5234

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-5234 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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