CVE-2020-27255 json
A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior.
published 5y ago modified 4mo ago also EUVD-2020-19768
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.9%
- EPSS 3.9% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
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).
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Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-20-329-01 updated cvss 5.3
Rockwell Automation FactoryTalk Linx
-
Rockwell Automation FactoryTalk Linx <= 6.11affected: vendor fix, mitigation “Run all software as “user” (not as “administrator”) to minimize the impact of malicious code on the infected system.” rockwellautomation.custhelp.com
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
3.87% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- n/a FactoryTalk Linx
Classification
- Weakness
-
- CWE-122 Heap-based Buffer Overflow
References
-
us-cert.cisa.gov
/ics/advisories/icsa-20-329-01
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2020-27255
- NVD CVE-2020-27255
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