CVE-2023-21405

Denial-of-Service vulnerability in Axis Network Door Controller's and Axis Network Intercom's OSDP communication

MEDIUM
6.5
CVSS Score
Published: July 25, 2023 at 07:34 AM UTC
Updated: June 17, 2026 at 05:32 AM UTC
17 products affected across 2 vendorsAXIS OSA1001 FirmwareA1601 Firmware

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 1.65.4
axis-a1001 (same device)
11.0 ≤ v ≤ 11.6.16.0
axis-a1210-b (same device)
v ≤ 1.84.410.0 ≤ v ≤ 10.12.171.011.0 ≤ v ≤ 11.6.16.0
axis-a1601 (same device)
v ≤ 10.12.171.011.0 ≤ v ≤ 11.6.16.0
axis-a1610-b (same device)
v ≤ 10.12.17811.0 ≤ v ≤ 11.5.53
axis-a8207 (environment) · axis-a8207-mkii (environment)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMAxis
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1286NVD-CWE-noinfoCWE-754

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