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NVD / CVE Program· CNA Axis

CVE-2023-21405: Denial-of-Service vulnerability in Axis Network Door Controller's and Axis Network Intercom's OSDP communication

MediumCVSS 6.5 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.29% (FIRST EPSS).
  • Someone on the same network segment can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Jul 25, 2023
Updated
Jun 17, 2026
EPSS
0.2% · 22th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
6.5
CNA · Axis
6.5
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-21405

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits every 10 minutes on paid plans, on the hour on the free plan.

Your free account also gets you

  • CVE alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools, at most 30 a day (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
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Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
axisa1001 firmware
axisa1001
axisa1210 \(-b\) firmware
axisa1210 \(-b\)
axisa1601 firmware
axisa1601
axisa1610 \(-b\) firmware
axisa1610 \(-b\)
axisaxis os
axisa8207
axisa8207 mkii

Using a1001 firmware? Add it to your stack and be the first to know about CVEs like this one. (IP camera)

Watch new CVEs for a1001 firmware

When you'll hear from us

  • when a new CVE affecting this product is published
  • when a record in your stack enters KEV or is weaponized

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits every 10 minutes on paid plans, on the hour on the free plan.

Your free account also gets you

  • CVE alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools, at most 30 a day (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every Monday

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Axis). Independent of NVD's CPE analysis and usually ahead of it.

  • Axis Communications AB AXIS A1001 Network Door Controller

    • AXIS OS 1.65.4 or earlieraffected

  • Axis Communications AB AXIS A1210-B Network Door Controller

    • AXIS OS 11.0 - 11.6.16.0affected

  • Axis Communications AB AXIS A1601 Network Door Controller

    • AXIS OS 1.84.4 or earlier, AXIS OS 10.12.171.0 or earlier, AXIS OS 11.0 - 11.6.16.0affected

  • Axis Communications AB AXIS A1610 (-B) Network Door Controller

    • AXIS OS 10.12.171.0 or earlier, AXIS OS 11.0 - 11.6.16.0affected

  • Axis Communications AB AXIS A8207-VE Mk II Network Video Door Station

    • AXIS OS 10.12.178 or earlier, AXIS OS AXIS OS 11.0 - 11.5.53affected

  • Axis Communications AB AXIS A8207-VE Network Video Door Station

    • AXIS OS 10.12.178 or earlier, AXIS OS AXIS OS 11.0 - 11.5.53affected
Affected versions · NVD (9)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • axis a1001 firmwareup to 1.65.4 inclusive
  • axis a1210 (-b) firmware11.0 and later · up to 11.6.16.0 inclusive
  • axis a1601 firmwareup to 1.84.4 inclusive
  • axis a1601 firmware10.0 and later · up to 10.12.171.0 inclusive
  • axis a1601 firmware11.0 and later · up to 11.6.16.0 inclusive
  • axis a1610 (-b) firmwareup to 10.12.171.0 inclusive
  • axis a1610 (-b) firmware11.0 and later · up to 11.6.16.0 inclusive
  • axis axis osup to 10.12.178 inclusive
  • axis axis os11.0 and later · up to 11.5.53 inclusive

Same product

axis: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-10661An issue was discovered in multiple models of Axis IP Cameras.
    65This week
  • CVE-2018-10660An issue was discovered in multiple models of Axis IP Cameras.
    64This week
  • CVE-2018-10662An issue was discovered in multiple models of Axis IP Cameras.
    63This week

Published before and after this one in the same product

  • ← EarlierCVE-2018-10663Jun 26, 2018 · An issue was discovered in multiple models of Axis IP Cameras.
    30Monitor
  • ← EarlierCVE-2018-10664Jun 26, 2018 · An issue was discovered in the httpd process in multiple models of Axis IP Cameras.
    30Monitor
  • Later →CVE-2023-21406Jul 25, 2023 · Heap-based buffer overflow in Axis A1001 Network Door Controller's OSDP communication
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-1286 · Improper Validation of Syntactic Correctness of Input

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records