THREATPORT/VULNERABILITY/CVE-2020-5807
HIGH SEVERITY

CVE-2020-5807

Factorytalk Diagnostics vulnerability

CVSS
7.5
EPSS
33.8%
EPSS pct
98th
Exploited
No known
An unauthenticated remote attacker can send data to RsvcHost.exe listening on TCP port 5241 to add entries in the FactoryTalk Diagnostics event log. The attacker can specify long fields in the log entry, which can cause an unhandled exception in wcscpy_s() if a local user opens FactoryTalk Diagnostics Viewer (FTDiagViewer.exe) to view the log entry. Observed in FactoryTalk Diagnostics 6.11. All versions of FactoryTalk Diagnostics are affected.
Affected vendor
Rockwellautomation
Affected product
Factorytalk Diagnostics
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2020-12-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 33.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2020-5807

  • Confirm whether Rockwellautomation Factorytalk Diagnostics is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-5807.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-5807

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-5807 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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