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01 Record

CVE-2023-5392

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

HighPUBLISHEDCNA: Honeywell
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.47% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 40.8% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-04-11 19:19Z2 YR AGO
Last updated
2024-08-02 07:59Z2 YR AGO
Reserved
2023-10-04
Assigning CNA
Honeywell
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-1295Debug Messages Revealing Unnecessary InformationBase
Data version
5.1
Document digest
ca0f2ca0d37d54393cfed17a8ddf3b87195ca49737f2881a11327baf00be6ab1

05 Affected products

VendorProductVersionsPlatforms
HoneywellC300520.2 to 520.2 TCU4, 510.1 to 510.2 HF13, 520.1 to 520.1 TCU4, 511.1 to 511.5 TCU4 HF3, 520.2 TCU4 HFR2 to 511.5 TCU4 HF3, 510.1 to 510.2_hf13, 511.1 to 511.5_tcu4_hf3, 520.1 to 520.1_tcu4, 520.2 to 520.2_tcu4, 520.2_tcu4_hfr2 to 511.5_tcu4_hf3Experion PKS, Experion LX, PlantCruise by Experion

06 References