CVE-2023-23585 | Server DoS due to heap overflow

Experion server DoS due to heap overflow occurring during the handling of a specially crafted message for a specific configuration operation.  See Honeywell Security Notification for recommendations on upgrading and versioning.

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-2023-23585 is rated Moderate Risk (55.7/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.65%). 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-2023-23585

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% 0.65% +0.11%
2 2026-06-15 0.06% 0.55% +0.49%
3 2025-11-21 — 0.06% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-23585

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [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-2023-23585

Affected software / configurations for CVE-2023-23585

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-2023-23585

cvelogic Threat Intelligence