CVE-2020-27251: rockwellautomation factorytalk_linx Heap-based Buffer Overflow
CVSS: 9.8v3.1CriticalModified
Published 26-11-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-27251 is a critical (CVSS 9.8) Heap-based Buffer Overflow vulnerability in rockwellautomation factorytalk_linx. EPSS estimates a 6.82% chance of exploitation in the next 30 days, higher than 93.9% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
6.82%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 26-11-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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 port ranges, which could result in remote code execution.
CVSS metrics
2 scores · 1 source · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
6.82%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
0.00 pp
From 6.82% on 21-09-2026
21-09-202621-10-2026
EPSS score6.82%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Rockwellautomation1 product
- factorytalk_linx≤ 6.11
1 vendor · 1 product
References
1 links
us-cert.cisa.gov/ics/advisories/icsa-20-329-01X Refsource MISCThird Party AdvisoryUS Government Resource