CVE-2022-2640

highpriority · track · 30EPSS 0.003 · 18 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (18th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

The Config-files of Horner Automation’s RCC 972 with firmware version 15.40 are encrypted with weak XOR encryption vulnerable to reverse engineering. This could allow an attacker to obtain credentials to run services such as File Transfer Protocol (FTP) and Hypertext Transfer Protocol (HTTP).

remediations

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

No vendor fix yet; a mitigation is available.

MitigationRCC 972cisa_csaf_ot
RCC 972: Update to Firmware Version 15.60 or later
https://hornerautomation.com/controller-firmware-cscan/

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 · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

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

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ics-cert@hq.dhs.gov USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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-326USCWE-326US

affected products (4)

Products and version ranges known to be affected.

Remote Compact Controller (RCC) 972 - RCC 972: Firmware Version 15.40all versionscisa_csaf_otUS
Horner Automation RCC 972all versionscisa_csaf_otUS
Horner Automation Remote Compact Controller (RCC) 972≤ Firmware Version 15.40enisa_euvdEU
hornerautomation rcc972 firmware= 15.40nvdUScpe:2.3:o:hornerautomation:rcc972_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-22-335-02Horner Automation Remote Compact Controller2022-12-01icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to obtain credentials to the affected device and obtain complete control.

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 2022-12-02modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

https://cxsecurity.com/cveshow/CVE-2022-2640/cnnvd
https://www.auscert.org.au/bulletins/ESB-2022.6279 cnnvd
https://www.cisa.gov/uscert/ics/advisories/icsa-22-335-02 cnnvd
https://www.cisa.gov/uscert/ics/advisories/icsa-22-335-02 enisa_euvd
https://www.cisa.gov/uscert/ics/advisories/icsa-22-335-02PatchThird Party AdvisoryUS Government Resourcenvd

scry

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