CVE-2026-13409
Received Received - Intake

Denial-of-Service in Axis VAPIX API via dynamicoverlay.cgi

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: Axis Communications AB

Description
The VAPIX API dynamicoverlay.cgi which results in a Denial-of-Service of the overlay functionality. This flaw can only be exploited after authenticating with an operator or admin-privileged service account.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
AI Q&A
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-13409
EUVD
EUVD-2026-120770

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
Axis Communications AB AXIS OS From 13.0.0 (inc) to 13.0.31 (exc)
Axis Communications AB AXIS OS From 12.0.0 (inc) to 12.11.84 (exc)
Axis Communications AB AXIS OS From 11.0.0 (inc) to 11.11.218 (exc)
Axis Communications AB AXIS OS From 10.0.0 (inc) to 10.12.345 (exc)
Axis Communications AB AXIS OS From 9.0.0 (inc) to 9.80.148 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

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Executive Summary

CVE-2026-13409 is a stack-based buffer overflow in Axis Communications' AXIS OS software affecting the VAPIX API's dynamicoverlay.cgi component. This flaw causes a Denial-of-Service (DoS) by disrupting the overlay functionality. Exploitation requires authentication with an operator or admin-privileged account.

Detection Guidance

Detecting this vulnerability requires checking for the presence of vulnerable AXIS OS versions and monitoring for unusual activity in the VAPIX API's dynamicoverlay.cgi component. Review system logs for failed authentication attempts or unexpected API calls to this endpoint. Use network scanning tools to identify devices running affected AXIS OS versions.

Impact Analysis

The vulnerability can disrupt the overlay functionality of Axis devices, leading to service unavailability. Since it requires authenticated access, unauthorized users cannot exploit it. However, if compromised, it may cause operational disruptions for systems relying on overlay features.

Mitigation Strategies
  • Update AXIS OS to the latest patched versions: Active Track 13.0.31, LTS 2026 12.11.84, LTS 2024 11.11.218, LTS 2022 10.12.345, or (Former LTS) 9.80.148.
  • Restrict access to the VAPIX API by limiting operator or admin-privileged account usage to trusted networks or users.
  • Monitor network traffic for suspicious activity targeting the dynamicoverlay.cgi endpoint.

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