PT-2020-16665 · Rockwell Automation · Factorytalk Linx

Published 2020-11-24 · Updated 2020-11-30 · CVE-2020-27251

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions FactoryTalk Linx versions 6.11 and prior

Description A heap overflow vulnerability exists, allowing a remote, unauthenticated attacker to send malicious port ranges, potentially resulting in remote code execution.

Recommendations For FactoryTalk Linx versions 6.11 and prior, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2025-07805

CVE-2020-27251

Affected Products

Factorytalk Linx

References · 9

• https://osv.dev/vulnerability/CVE-2020-27251 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-07805 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-27251 · Security Note
• https://rockwellautomation.com/en-us/trust-center/security-advisories/advisory.PN1536.html · Note
• https://t.me/cvenotify/6349 · Telegram Post
• https://t.me/cibsecurity/16858 · Telegram Post
• https://cisa.gov/news-events/ics-advisories/icsa-20-329-01 · Note
• https://t.me/cvenotify/6236 · Telegram Post
• https://us-cert.cisa.gov/ics/advisories/icsa-20-329-01 · Note