CVE-2018-18993

mediumpriority · track · 32EPSS 0.018 · 78 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.75% (78th) EPSS

CVSS 6.8 · medium

Is it mine?

11 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

Two stack-based buffer overflow vulnerabilities have been discovered in CX-One Versions 4.42 and prior (CX-Programmer Versions 9.66 and prior and CX-Server Versions 5.0.23 and prior). When processing project files, the application allows input data to exceed the buffer. An attacker could use a specially crafted project file to overflow the buffer and execute code under the privileges of the application.

remediations

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

A vendor fix is available.

FixedCX-Programmercisa_csaf_ot
CX-Programmer Versions 9.70, and
FixedCX-Servercisa_csaf_ot
CX-Programmer Versions 9.70, and
MitigationCX-Programmercisa_csaf_ot
Common Module including CX-Server Version 5.0.24
MitigationCX-Servercisa_csaf_ot
Common Module including CX-Server Version 5.0.24

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 · 6.6–7.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

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

v3.06.6mediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Hsecondary · CISA US

v3.16.6mediumAV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:Hsecondary · FSTEC (BDU) RU

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-121USCWE-121USCWE-121US

affected products (11)

Products and version ranges known to be affected.

CX-Programmer: Versions 9.66 and priorall versionscisa_csaf_otUS
CX-Server: Versions 5.0.23 and priorall versionscisa_csaf_otUS
Omron CX-Programmer≤ 9.66cisa_csaf_otUS
Omron CX-Server≤ 5.0.23cisa_csaf_otUS
n/a CX-One (CX-Programmer and CX-Server)≤ CX-One Versions 4.42 and prior (CX-Programmer Versions 9.66 and prior and CX-Server Versions 5.0.23 and prior)enisa_euvdEU
Omron Electronics LLC CX-One≤ 4.42fstec_bduRU
Omron Electronics LLC Omron CX-Programmer≤ 9.66fstec_bduRU
Omron Electronics LLC Omron CX-Server≤ 5.0.23fstec_bduRU
omron cx-one≤ 4.42nvdUScpe:2.3:a:omron:cx-one:*:*:*:*:*:*:*:*
omron cx-programmer≤ 9.66nvdUScpe:2.3:a:omron:cx-programmer:*:*:*:*:*:*:*:*
omron cx-server≤ 5.0.23nvdUScpe:2.3:a:omron:cx-server:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-18-338-01Omron CX-One2018-12-04icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to execute code under the privileges of the application.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd NVD CVE.org MITRE

published 2018-12-04modified 2026-06-17

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+16123 more

references (7)

External citations — patches, advisories, analysis.

https://ics-cert.us-cert.gov/advisories/ICSA-18-338-01 cnnvd
https://www.omron.com/Patchcnnvd
https://www.securityfocus.com/bid/106106 cnnvd
http://www.securityfocus.com/bid/106106 enisa_euvd
https://ics-cert.us-cert.gov/advisories/ICSA-18-338-01 enisa_euvd
http://www.securityfocus.com/bid/106106Third Party AdvisoryVDB Entrynvd
https://ics-cert.us-cert.gov/advisories/ICSA-18-338-01Third Party AdvisoryUS Government Resourcenvd

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