02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: HoneywellController denial of service due to improper handling of a specially crafted message received by the controller. See Honeywell Security Notification for recommendations on upgrading and versioning.
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- 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.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- 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
- 0.44% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 36.8% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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.
SCHEMA: 5.1
- Published
- 2024-04-17 16:49Z2 YR AGO
- Last updated
- 2024-08-08 15:49Z2 YR AGO
- Reserved
- 2023-10-04
- Assigning CNA
- Honeywell
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-121Stack-based Buffer OverflowVariant
- Data version
- 5.1
- Document digest
- 61049e4170b1a742cc792db11385c2d52a7c7471d6ef18c497a695754a34ec26
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
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 HF3Experion PKS, Experion LX, PlantCruise by Experion