CVE-2023-23585

highpriority · track · 30EPSS 0.007 · 51 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.65% (51st) EPSS

CVSS 7.5 · high

Is it mine?

42 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

Experion server DoS due to heap overflow occurring during the handling of a specially crafted message for a specific configuration operation. See Honeywell Security Notification for recommendations on upgrading and versioning.

remediations

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

A vendor fix is available.

FixedExperion LXcisa_csaf_ot
Experion LX: Update to version R520.2
FixedExperion PKScisa_csaf_ot
Experion PKS: Update to version R520.2
FixedExperion PlantCruisecisa_csaf_ot
Experion PlantCruise: Update to version R520.2
MitigationExperion LXcisa_csaf_ot
Honeywell recommends users upgrade Experion Platforms to version R520.2. Download information includes the following:
MitigationExperion PKScisa_csaf_ot
Honeywell recommends users upgrade Experion Platforms to version R520.2. Download information includes the following:
MitigationExperion PlantCruisecisa_csaf_ot
Honeywell recommends users upgrade Experion Platforms to version R520.2. Download information includes the following:

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.9–9.8

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

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@honeywell.comexploitability 3.9 · impact 5.9

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-122USCWE-122US

affected products (42)

Products and version ranges known to be affected.

Experion LX: < R520.2all versionscisa_csaf_otUS
Experion PKS: < R520.2all versionscisa_csaf_otUS
Experion PlantCruise: < R520.2all versionscisa_csaf_otUS
Honeywell Experion LX< R520.2cisa_csaf_otUS
Honeywell Experion PKS< R520.2cisa_csaf_otUS
Honeywell Experion PlantCruise< R520.2cisa_csaf_otUS
Honeywell Direct Station≤ 510.5 ≤511.5TCU3enisa_euvdEU
Honeywell Direct Station≤ 520.1 ≤520.1TCU4enisa_euvdEU
Honeywell Direct Station≤ 520.2 ≤520.2TCU2enisa_euvdEU
Honeywell Engineering Station≤ 510.1 ≤511.5TCU3enisa_euvdEU
Honeywell Engineering Station≤ 520.1 ≤520.1TCU4enisa_euvdEU
Honeywell Engineering Station≤ 520.2 ≤520.2TCU2enisa_euvdEU
Honeywell Experion Server≤ 510.1 ≤510.2HF12enisa_euvdEU
Honeywell Experion Server≤ 520.1 ≤520.1TCU4enisa_euvdEU
Honeywell Experion Server≤ 501.1 ≤501.6HF8enisa_euvdEU
Honeywell Experion Server≤ 520.2 ≤520.2TCU2enisa_euvdEU
Honeywell Experion Server≤ 511.1 ≤511.5TCU3enisa_euvdEU
Honeywell Experion Station≤ 520.1 ≤520.1TCU4enisa_euvdEU
Honeywell Experion Station≤ 520.2 ≤520.2TCU2enisa_euvdEU
Honeywell Experion Station≤ 511.1 ≤511.5TCU3enisa_euvdEU

showing 20 of 42

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-23-194-06Honeywell Experion PKS, LX and PlantCruise2023-07-13icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could cause a denial-of-service condition, allow privilege escalation or allow remote code execution.

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 CVE.org MITRE

published 2023-07-13modified 2026-06-17

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+16120 more

references (4)

External citations — patches, advisories, analysis.

scry

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