CVE-2020-27251

Factorytalk Linx vulnerability

CVSS

9.8

EPSS

5.5%

EPSS pct

92th

Exploited

No known

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious port ranges, which could result in remote code execution.

Affected vendor

Rockwellautomation

Affected product

Factorytalk Linx

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-122 — Heap-based Buffer Overflow

Published

2020-11-26

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 confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 5.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2020-27251

Confirm whether Rockwellautomation Factorytalk Linx is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-27251.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-27251

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-27251 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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