THREATPORT/VULNERABILITY/CVE-2018-17980
HIGH SEVERITY

CVE-2018-17980

Nomachine vulnerability

CVSS
7.8
EPSS
4.6%
EPSS pct
91th
Exploited
No known
NoMachine before 5.3.27 and 6.x before 6.3.6 allows attackers to gain privileges via a Trojan horse wintab32.dll file located in the same directory as a .nxs file, as demonstrated by a scenario where the .nxs file and the DLL are in the current working directory, and the Trojan horse code is executed. (The directory could, in general, be on a local filesystem or a network share.).
Affected vendor
Nomachine
Affected product
Nomachine
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2018-10-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, 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 4.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2018-17980

  • Confirm whether Nomachine Nomachine is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-17980.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-17980

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-17980 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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