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CVE-2023-24474

Server deserialization missing boundary checks - heap overflow in communication between server and controller

High7.5EPSS 0.66%
Published
Updated
Reserved
Assigned by
Honeywell

Description

Experion server may experience a DoS due to a heap overflow which could occur when handling a specially crafted message

Timeline

  1. ID reserved

    By Honeywell

  2. · 5 months later

    Published

  3. · 16 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-24474, by who scored it
Scored byCVSSScoreVector
HoneywellCNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.66% · top 48% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Honeywell · Experion Server

    • affected 501.1 – ≤ 501.6HF8
    • affected 510.1 – ≤ 510.2HF12
    • affected 511.1 – ≤ 511.5TCU3
    • affected 520.1 – ≤ 520.1TCU4
    • affected 520.2 – ≤ 520.2TCU2

  • Honeywell · Experion Station

    • affected 501.1 – ≤ 501.6HF8
    • affected 510.1 – ≤ 510.2HF12
    • affected 511.1 – ≤ 511.5TCU3
    • affected 520.1 – ≤ 520.1TCU4
    • affected 520.2 – ≤ 520.2TCU2

  • Honeywell · Engineering Station

    • affected 510.1 – ≤ 511.5TCU3
    • affected 520.1 – ≤ 520.1TCU4
    • affected 520.2 – ≤ 520.2TCU2

  • Honeywell · Direct Station

    • affected 510.5 – ≤ 511.5TCU3
    • affected 520.1 – ≤ 520.1TCU4
    • affected 520.2 – ≤ 520.2TCU2

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .