SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2022-30242

Honeywell Alerton Ascent Control Module (ACM) through 2022-05-04 allows unauthenticated configuration changes from remote users.

MEDIUM 6.8EPSS 1.25%

Does this matter?

Lower severity and a low EPSS score (1.25%). Track it; it rarely justifies an emergency change on its own.

Description

Honeywell Alerton Ascent Control Module (ACM) through 2022-05-04 allows unauthenticated configuration changes from remote users. This enables configuration data to be stored on the controller and then implemented. A user with malicious intent can send a crafted packet to change the controller configuration without the knowledge of other users, altering the controller's function capabilities. The changed configuration is not updated in the User Interface, which creates an inconsistency between the configuration display and the actual configuration on the controller. After the configuration change, remediation requires reverting to the correct configuration, requiring either physical or remote access depending on the configuration that was altered.

CVSS 3.1
6.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
EPSS
1.25% probability · 69th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
honeywell/alerton ascent control module firmware
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.25%26 October 202626 October 2026

EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.