CVE-2023-24474 | Server deserialization missing boundary checks - heap overflow in communication between server and controller

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

Published: 2023-07-13 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-24474 is rated Moderate Risk (46.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.66%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-24474

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-07-14 0.55% 0.66% +0.11%
2 2026-06-15 0.03% 0.55% +0.52%
3 2025-11-21 — 0.03% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-24474

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-24474

Affected software / configurations for CVE-2023-24474

Vendor Product Version Raw CPE
honeywell experion_server >= 501.1, <= 501.6hf8 cpe:2.3:a:honeywell:experion_server:*:*:*:*:*:*:*:*
honeywell experion_server >= 510.1, <= 510.2hf12 cpe:2.3:a:honeywell:experion_server:*:*:*:*:*:*:*:*
honeywell experion_server >= 511.1, <= 511.5tcu3 cpe:2.3:a:honeywell:experion_server:*:*:*:*:*:*:*:*
honeywell experion_server >= 520.1, <= 520.1tcu4 cpe:2.3:a:honeywell:experion_server:*:*:*:*:*:*:*:*
honeywell experion_server >= 520.2, <= 520.2tcu2 cpe:2.3:a:honeywell:experion_server:*:*:*:*:*:*:*:*
honeywell experion_station >= 501.1, <= 501.6hf8 cpe:2.3:a:honeywell:experion_station:*:*:*:*:*:*:*:*
honeywell experion_station >= 510.1, <= 510.2hf12 cpe:2.3:a:honeywell:experion_station:*:*:*:*:*:*:*:*
honeywell experion_station >= 511.1, <= 511.5tcu3 cpe:2.3:a:honeywell:experion_station:*:*:*:*:*:*:*:*
honeywell experion_station >= 520.1, <= 520.1tcu4 cpe:2.3:a:honeywell:experion_station:*:*:*:*:*:*:*:*
honeywell experion_station >= 520.2, <= 520.2tcu2 cpe:2.3:a:honeywell:experion_station:*:*:*:*:*:*:*:*
honeywell engineering_station >= 510.1, <= 511.5tcu3 cpe:2.3:a:honeywell:engineering_station:*:*:*:*:*:*:*:*
honeywell engineering_station >= 520.1, <= 520.1tcu4 cpe:2.3:a:honeywell:engineering_station:*:*:*:*:*:*:*:*
honeywell engineering_station >= 520.2, <= 520.2tcu2 cpe:2.3:a:honeywell:engineering_station:*:*:*:*:*:*:*:*
honeywell direct_station >= 510.1, <= 511.5tcu3 cpe:2.3:a:honeywell:direct_station:*:*:*:*:*:*:*:*
honeywell direct_station >= 520.1, <= 520.1tcu4 cpe:2.3:a:honeywell:direct_station:*:*:*:*:*:*:*:*
honeywell direct_station >= 520.2, <= 520.2tcu2 cpe:2.3:a:honeywell:direct_station:*:*:*:*:*:*:*:*

References for CVE-2023-24474

cvelogic Threat Intelligence