CVE-2020-27255 Information disclosure in FactoryTalk Linx
Remote unauthenticated attackers can leak sensitive information via heap overflow, enabling ASLR bypass in FactoryTalk Linx.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-27255?
CVE-2020-27255 is a high-severity vulnerability in FactoryTalk Linx, published on 26 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious set attribute requests, which could result in the leaking of sensitive information. This information disclosure could lead to the bypass of address space layout randomization (ASLR).
Weakness: CWE-122
Which versions are affected by CVE-2020-27255?
It affects 1 product.
Products include Rockwellautomation Factorytalk Linx.
How do I fix CVE-2020-27255?
No fix has been published for CVE-2020-27255 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-27255 being exploited?
There is no known exploitation of CVE-2020-27255 in the wild and no public exploit code.
Other vulnerabilities in FactoryTalk Linx
- CVE-2020-27251 Memory corruption in FactoryTalk Linx
- CVE-2020-12001 Path traversal in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software
- CVE-2025-9067 Rockwell Automation FactoryTalk® Linx Privilege Escalation Vulnerabilities
- CVE-2025-9068 Rockwell Automation FactoryTalk® Linx Privilege Escalation Vulnerabilities
- CVE-2025-7972 Rockwell Automation FactoryTalk® Linx Network Browser Security Bypass Vulnerability
Sources
Also known as GHSA-q4jm-4p9g-2h6g.