THREATPORT/VULNERABILITY/CVE-2020-5801
HIGH SEVERITY

CVE-2020-5801

Factorytalk Linx vulnerability

CVSS
7.5
EPSS
25.2%
EPSS pct
98th
Exploited
No known
An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.
Affected vendor
Rockwellautomation
Affected product
Factorytalk Linx
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 25.2% 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-2020-5801

  • Confirm whether Rockwellautomation Factorytalk Linx is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-5801.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-5801

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-5801 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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