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Fencer Vulns
high 7.5

CVE-2023-5392 json

C300 information leak due to an analysis feature which allows extracting more memory over the network than required by the function.

published 2024-04-11 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-57707

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

C300 information leak due to an analysis feature which allows extracting more memory over the network than required by the function. Honeywell recommends updating to the most recent version of the product. See Honeywell Security Notification for recommendations on upgrading and versioning.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-116-04 updated cvss 7.5

Honeywell Experion PKS, Experion LX, PlantCruise by Experion, Safety Manager, Safety Manager SC

  • Honeywell Experion LX <R511.5_TCU4_HF4, <R520.1_TCU5, <R520.2_TCU4_HF2 Honeywell Experion PKS <R510.2_HF14, <R511.5_TCU4_HF4, <R520.1_TCU5, <R520.2_TCU4_HF2 Honeywell PlantCruise by Experion <R511.5_TCU4_HF4, <R520.1_TCU5, <R520.2_TCU4_HF2 Honeywell Safety Manager R15x, >=R16x, <=R162.10 Honeywell Safety Manager SC R210.X, R211.1, R211.2, R212.1
    affected: mitigation “Honeywell fixed the reported issues and advises users to upgrade to version referenced in the Security Notice or CVE record.” process.honeywell.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Honeywell C300

Classification

Weakness
  • CWE-1295 Debug Messages Revealing Unnecessary Information

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.