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CVE-2023-21405

18
FAUCET Score

CVE-2023-21405 is a denial-of-service vulnerability affecting Axis Network Door Controllers and Intercoms when communicating via OSDP. A flaw in the OSDP message parser can crash the pacsiod process, temporarily disabling door control functionalities. This vulnerability has a CVSS score of 6.5 (Medium) due to its network-adjacent attack vector and high impact on availability, though no data exfiltration or further compromise occurs. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.65.4CPE matchmatch criteria
cpe:2.3:o:axis:a1001_firmware:*:*:*:*:*:*:*:*
>= 11.0, <= 11.6.16.0CPE matchmatch criteria
cpe:2.3:o:axis:a1210_\(-b\)_firmware:*:*:*:*:*:*:*:*
<= 1.84.4CPE matchmatch criteria
cpe:2.3:o:axis:a1601_firmware:*:*:*:*:*:*:*:*
>= 10.0, <= 10.12.171.0CPE matchmatch criteria
cpe:2.3:o:axis:a1601_firmware:*:*:*:*:*:*:*:*
>= 11.0, <= 11.6.16.0CPE matchmatch criteria
cpe:2.3:o:axis:a1601_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
21.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 32nd percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

axis.com / dam/public/7f/3a/ed/cve-2023-21405-en-US-407244.pdf
Vendor Advisory