CVE-2020-14504

mediumpriority · track · 21EPSS 0.013 · 70 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.27% (70th) EPSS

CVSS 5 · medium

Is it mine?

10 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedSeries Bcisa_csaf_ot
1734-AENTR Series B, update to firmware Version 5.018
https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&refSoft=1&toggleState=&versions=59459
FixedSeries Ccisa_csaf_ot
1734-AENTR Series B, update to firmware Version 5.018
https://compatibility.rockwellautomation.com/Pages/MultiProductFindDownloads.aspx?crumb=112&refSoft=1&toggleState=&versions=59459
MitigationSeries Bcisa_csaf_ot
Locate control system networks and devices behind firewalls and isolate them from the business network.
MitigationSeries Ccisa_csaf_ot
Locate control system networks and devices behind firewalls and isolate them from the business network.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · CISA US

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondaryexploitability 3.9 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-284USCWE-287US

affected products (10)

Products and version ranges known to be affected.

Series B: Versions 4.001 to 4.005 and 5.011 to 5.017all versionscisa_csaf_otUS
Series C: Versions 6.011 and 6.012all versionscisa_csaf_otUS
Rockwell Automation Series B4.001 | → 4.005 | > 5.011 | < 5.017cisa_csaf_otUS
Rockwell Automation Series Call versionscisa_csaf_otUS
Rockwell Automation 1734-AENTR≤ Series C 6.011 and 6.012enisa_euvdEU
Rockwell Automation 1734-AENTR≤ Series B 4.001 to 4.005, and 5.011 to 5.017enisa_euvdEU
rockwellautomation 1734-aentr point i/o dual port network adaptor series b firmware4.001 → 4.005nvdUScpe:2.3:o:rockwellautomation:1734-aentr_point_i\/o_dual_port_network_adaptor_series_b_firmware:*:*:*:*:*:*:*:*
rockwellautomation 1734-aentr point i/o dual port network adaptor series b firmware5.011 → 5.017nvdUScpe:2.3:o:rockwellautomation:1734-aentr_point_i\/o_dual_port_network_adaptor_series_b_firmware:*:*:*:*:*:*:*:*
rockwellautomation 1734-aentr point i/o dual port network adaptor series c firmware= 6.011nvdUScpe:2.3:o:rockwellautomation:1734-aentr_point_i\/o_dual_port_network_adaptor_series_c_firmware:*:*:*:*:*:*:*:*
rockwellautomation 1734-aentr point i/o dual port network adaptor series c firmware= 6.012nvdUScpe:2.3:o:rockwellautomation:1734-aentr_point_i\/o_dual_port_network_adaptor_series_c_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-21-063-01Rockwell Automation 1734-AENTR Series B and Series C2021-03-04icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could lead to unauthorized data modification on the affected devices.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2022-02-24modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

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