THREATPORT/VULNERABILITY/CVE-2020-5806
MEDIUM SEVERITY

CVE-2020-5806

Factorytalk Linx vulnerability

CVSS
5.5
EPSS
4.8%
EPSS pct
91th
Exploited
No known
An attacker-controlled memory allocation size can be passed to the C++ new operator in the CServerManager::HandleBrowseLoadIconStreamRequest in messaging.dll. This can be done by sending a specially crafted message to 127.0.0.1:7153. 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:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-770 — Allocation of Resources Without Limits or Throttling
Published
2020-12-29

Risk analysis

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

Its EPSS score of 4.8% 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-2020-5806

  • Confirm whether Rockwellautomation Factorytalk Linx is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-5806.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-5806

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-5806 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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