CVE-2020-27253: rockwellautomation factorytalk_linx Improper Input Validation
CVSS: 7.8v2.0HighModified
Published 26-11-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-27253 is a high (CVSS 7.8) Improper Input Validation vulnerability in rockwellautomation factorytalk_linx. EPSS estimates a 1.92% chance of exploitation in the next 30 days, higher than 79.5% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v2.0 (NVD)EPSS score
1.92%
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 flaw exists in the Ingress/Egress checks routine of FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to specifically craft a malicious packet resulting in a denial-of-service condition on the device.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
High 7.8Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
1.92%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
0.00 pp
From 1.92% on 20-09-2026
20-09-202620-10-2026
EPSS score1.92%
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