CVE-2025-55038

mediumpriority · track · 0OT risk · elevatedEPSS 0.003 · 17 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.26% (17th) EPSS
CVSS 6.8 · medium
Is it mine?
9 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · cisa_csaf_ot

EPSS · scored 2026-10-23

An authorization bypass vulnerability has been discovered in the Click Plus C2-03CPU2 device firmware version 3.60. Through the KOPR protocol utilized by the Remote PLC application, authenticated users with low-level access permissions can exploit this vulnerability to read and modify PLC variables beyond their intended authorization level.

01

remediations

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

No vendor fix yet; a mitigation is available.

  • MitigationCLICK PLUS C0-0x CPU firmwarecisa_csaf_ot

    Access Control – Restrict both physical and logical access to authorized personnel only.

  • MitigationCLICK PLUS C0-1x CPU firmwarecisa_csaf_ot

    Access Control – Restrict both physical and logical access to authorized personnel only.

  • MitigationCLICK PLUS C2-x CPU firmwarecisa_csaf_ot

    Access Control – Restrict both physical and logical access to authorized personnel only.

02

cvss

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

7.6
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.6

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · CISA US
v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · ics-cert@hq.dhs.gov USexploitability 1.6 · impact 5.2
v4.07.6highCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.07.6highCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · ics-cert@hq.dhs.gov US
v4.04.9mediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
03

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862USCWE-862US
05

affected products (9)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-25-266-01AutomationDirect CLICK PLUS2025-09-23icsa · cisa_csaf_otUS

    Successful exploitation of these vulnerabilities disclose sensitive information, modify device settings, escalate privileges, or cause a denial-of-service condition on the affected device.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otNVDCVE.orgMITRE
published 2025-09-23modified 2026-10-18
09

references (6)

External citations — patches, advisories, analysis.

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