Axis Communication Network Door Controllers and Intercoms Denial of Service (CVE-2023-21405)

medium Tenable OT Security Plugin ID 501933


The remote OT asset is affected by a vulnerability.


Knud from has found a flaw in some Axis Network Door Controllers and Axis Network Intercoms when communicating over OSDP, highlighting that the OSDP message parser crashes the pacsiod process, causing a temporary unavailability of the door-controlling functionalities meaning that doors cannot be opened or closed. No sensitive or customer data can be extracted as the Axis device is not further compromised. Please refer to the Axis security advisory for more information, mitigation and affected products and software versions.

This plugin only works with Tenable.ot.
Please visit for more information.


Refer to the vendor advisory.

See Also

Plugin Details

Severity: Medium

ID: 501933

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 1/23/2024

Updated: 6/18/2024

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2023-21405


Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:axis:a1001_firmware, cpe:/o:axis:a1210_%28-b%29_firmware, cpe:/o:axis:a1601_firmware:1, cpe:/o:axis:a1601_firmware:10, cpe:/o:axis:a1601_firmware:11, cpe:/o:axis:a1610_%28-b%29_firmware:10, cpe:/o:axis:a1610_%28-b%29_firmware:11, cpe:/o:axis:a8207, cpe:/o:axis:a8207_mkii

Required KB Items: Tenable.ot/AxisCommunication

Exploit Ease: No known exploits are available

Patch Publication Date: 7/25/2023

Vulnerability Publication Date: 7/25/2023

Reference Information

CVE: CVE-2023-21405