CVE-2018-8834

mediumpriority · track · 31EPSS 0.003 · 25 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.32% (25th) EPSS

CVSS 4.6 · medium

Is it mine?

22 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

Parsing malformed project files in Omron CX-One versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior, may cause a heap-based buffer overflow.

remediations

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

A vendor fix is available.

FixedCX-FLnetcisa_csaf_ot
Omron has released an updated version of CX-One to address the reported vulnerabilities. These releases are available through the CX-One auto-update service.
FixedCX-Onecisa_csaf_ot
Omron has released an updated version of CX-One to address the reported vulnerabilities. These releases are available through the CX-One auto-update service.
FixedCX-Programmercisa_csaf_ot
Omron has released an updated version of CX-One to address the reported vulnerabilities. These releases are available through the CX-One auto-update service.
FixedCX-Protocolcisa_csaf_ot
Omron has released an updated version of CX-One to address the reported vulnerabilities. These releases are available through the CX-One auto-update service.
FixedCX-Servercisa_csaf_ot
Omron has released an updated version of CX-One to address the reported vulnerabilities. These releases are available through the CX-One auto-update service.
FixedNetwork Configuratorcisa_csaf_ot
Omron has released an updated version of CX-One to address the reported vulnerabilities. These releases are available through the CX-One auto-update service.
FixedSwitch Box Utilitycisa_csaf_ot
Omron has released an updated version of CX-One to address the reported vulnerabilities. These releases are available through the CX-One auto-update service.
MitigationCX-FLnetcisa_csaf_ot
CX-FLnet version 1.10,
MitigationCX-Onecisa_csaf_ot
CX-FLnet version 1.10,
MitigationCX-Programmercisa_csaf_ot
CX-FLnet version 1.10,
MitigationCX-Protocolcisa_csaf_ot
CX-FLnet version 1.10,
MitigationCX-Servercisa_csaf_ot
CX-FLnet version 1.10,
MitigationNetwork Configuratorcisa_csaf_ot
CX-FLnet version 1.10,
MitigationSwitch Box Utilitycisa_csaf_ot
CX-FLnet version 1.10,

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.05.3mediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Lsecondary · CISA US

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-122USCWE-122US

affected products (22)

Products and version ranges known to be affected.

CX-FLnet: versions 1.00 and priorall versionscisa_csaf_otUS
CX-One: Versions up to and including 4.42all versionscisa_csaf_otUS
CX-Programmer: versions 9.65 and priorall versionscisa_csaf_otUS
CX-Protocol: versions 1.992 and priorall versionscisa_csaf_otUS
CX-Server: versions 5.0.22 and priorall versionscisa_csaf_otUS
Network Configurator: versions 3.63 and priorall versionscisa_csaf_otUS
Switch Box Utility: versions 1.68 and priorall versionscisa_csaf_otUS
Omron CX-FLnet≤ 1.00cisa_csaf_otUS
Omron CX-One≤ 4.42cisa_csaf_otUS
Omron CX-Programmer≤ 9.65cisa_csaf_otUS
Omron CX-Protocol≤ 1.992cisa_csaf_otUS
Omron CX-Server≤ 5.0.22cisa_csaf_otUS
Omron Network Configurator≤ 3.63cisa_csaf_otUS
Omron Switch Box Utility≤ 1.68cisa_csaf_otUS
ICS-CERT Omron CX-One≤ The following versions of CX-One are affected: CX-One Versions 4.42 and prior, including the following applications: CX-FLnet versions 1.00 and prior, CX-Protocol versions 1.992 and prior, CX-Programmer versions 9.65 and prior, CX-Server versions 5.0.22 and prior, Network Configurator versions 3.63 and prior, and Switch Box Utility versions 1.68 and prior.enisa_euvdEU
omron cx-flnet≤ 1.00nvdUScpe:2.3:a:omron:cx-flnet:*:*:*:*:*:*:*:*
omron cx-one≤ 4.42nvdUScpe:2.3:a:omron:cx-one:*:*:*:*:*:*:*:*
omron cx-programmer≤ 9.65nvdUScpe:2.3:a:omron:cx-programmer:*:*:*:*:*:*:*:*
omron cx-protocol≤ 1.992nvdUScpe:2.3:a:omron:cx-protocol:*:*:*:*:*:*:*:*
omron cx-server≤ 5.0.22nvdUScpe:2.3:a:omron:cx-server:*:*:*:*:*:*:*:*

showing 20 of 22

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-18-100-02Omron CX-One2018-04-10icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow remote code execution.

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 2018-04-17modified 2026-06-17

related (16,128)

Related entries.

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+16123 more

references (3)

External citations — patches, advisories, analysis.

https://ics-cert.us-cert.gov/advisories/ICSA-18-100-02 cnnvd
https://ics-cert.us-cert.gov/advisories/ICSA-18-100-02 enisa_euvd
https://ics-cert.us-cert.gov/advisories/ICSA-18-100-02Third Party AdvisoryUS Government Resourcenvd

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