CVE-2023-21405: Axis a1001 Firmware

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Knud from Fraktal.fi 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.

Affected products

• Axis a1001 Firmware: up to and including 1.65.4
• Axis a1210 (-B) Firmware: from 11.0, up to and including 11.6.16.0
• Axis a1601 Firmware: up to and including 1.84.4; from 10.0, up to and including 10.12.171.0; from 11.0, up to and including 11.6.16.0
• Axis a1610 (-B) Firmware: up to and including 10.12.171.0; from 11.0, up to and including 11.6.16.0
• Axis Axis OS: up to and including 10.12.178; from 11.0, up to and including 11.5.53

Published 2023-07-25. Last modified 2026-06-17.