CVE-2026-5304Network attack vector

Privilege escalation via unvalidated ACAP configuration

Published Aug 11, 2026 · Updated Aug 11, 2026

Improper input validation in AXIS OS 12.0.0 through 12.11.11 allows attackers to gain elevated privileges via a malicious ACAP application. Axis identifies an ACAP configuration file as the locus but has not disclosed which field or type is accepted without validation or how the value crosses a privilege boundary. Exploitation requires unsigned ACAP installation to be enabled and an authorized victim to install the attacker-supplied application; Axis has not disclosed the resulting elevated capabilities.

CVSS severity5.7
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in AXIS OS 12.0.0 through 12.11.11 allows attackers to gain elevated privileges via a malicious ACAP application. Axis identifies an ACAP configuration file as the locus but has not disclosed which field or type is accepted without validation or how the value crosses a privilege boundary. Exploitation requires unsigned ACAP installation to be enabled and an authorized victim to install the attacker-supplied application; Axis has not disclosed the resulting elevated capabilities.

The record

CVE
CVE-2026-5304
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Axis Communications AB
Product
AXIS OS
Classifications
CWE-1287, T1204.002
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.0.0 <12.11.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Axis Communications AB · AXIS OSversion=12.0.0 <12.11.12

Published CVSS scores

5.7Axis Communications ABCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1287Improper Validation of Specified Type of Input
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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