CVE-2020-14504: rockwell automation 1734-aentr Improper Access Control
Modified
Published 24-02-2022Last modified 17-04-2025
Vulnerability summary
CVE-2020-14504 is a medium (CVSS 5.3) Improper Access Control vulnerability in rockwell automation 1734-aentr. EPSS estimates a 1.27% chance of exploitation in the next 30 days, higher than 69.5% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
1.27%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 24-02-2022PublishedVulnerability first disclosed.
- 17-04-2025Last modifiedVulnerability information updated.
Description
The web interface of the 1734-AENTR communication module mishandles authentication for HTTP POST requests. A remote, unauthenticated attacker can send a crafted request that may allow for modification of the configuration settings.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NSourcesAll 2 agree
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.27%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.27% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Rockwellautomation2 products
- 1734-aentr_point_i\/o_dual_port_network_adaptor_series_b_firmware≥ 4.001, ≤ 4.005 | ≥ 5.011, ≤ 5.017
- 1734-aentr_point_i\/o_dual_port_network_adaptor_series_c_firmware6.011 | 6.012
Rockwell automation1 product
- 1734-aentrSeries B 4.001 to 4.005, and 5.011 to 5.017 | Series C 6.011 and 6.012
2 vendors · 3 products
References
1 links- www.cisa.gov/uscert/ics/advisories/icsa-21-063-01X Refsource MISCMitigationThird Party AdvisoryUS Government Resource