PT-2020-16667 · Rockwell Automation · Factorytalk Linx

Published 2020-11-24 · Updated 2020-11-30 · CVE-2020-27253

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

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

Description A flaw exists in the Ingress/Egress checks routine, allowing a remote, unauthenticated attacker to craft a malicious packet, resulting in a denial-of-service condition on the device.

Recommendations For versions prior to 6.11, update to a version that includes a fix for this issue to prevent a denial-of-service condition. As a temporary workaround, consider implementing network traffic filtering to restrict malicious packets from reaching the device.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2025-07807

CVE-2020-27253

Affected Products

Factorytalk Linx

References · 9

• https://bdu.fstec.ru/vul/2025-07807 · Security Note
• https://osv.dev/vulnerability/CVE-2020-27253 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27253 · Security Note
• https://rockwellautomation.com/en-us/trust-center/security-advisories/advisory.PN1536.html · Note
• https://cisa.gov/news-events/ics-advisories/icsa-20-329-01 · Note
• https://t.me/cibsecurity/16857 · Telegram Post
• https://us-cert.cisa.gov/ics/advisories/icsa-20-329-01 · Note
• https://t.me/cvenotify/6237 · Telegram Post
• https://t.me/cvenotify/6350 · Telegram Post