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CVE-2026-5303

Quick assessment

Affected
Axis Communications AB AXIS OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AXIS OS是瑞典AXIS公司的一种边缘设备操作系统。 AXIS OS 12.0.0版本至12.11.31之前版本存在竞争条件问题漏洞，该漏洞源于ACAP框架存在TOCTOU竞争条件，可能导致权限提升。

CVSS 5.7 · Medium EPSS 0.23% · P12

Affected Version Matrix 1

VendorProduct Version RangeStatus
Axis Communications AB AXIS OS 12.0.0< 12.11.31 affected
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I. Basic Information for CVE-2026-5303

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The ACAP framework contains a Time-of-Check to Time-of-Use (TOCTOU) race condition, which could potentially lead to privilege escalation. This vulnerability can only be exploited if the Axis device is configured to allow the installation of unsigned ACAP applications, and if an attacker convinces the victim to install a malicious ACAP application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
AXIS OS 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AXIS OS是瑞典AXIS公司的一种边缘设备操作系统。 AXIS OS 12.0.0版本至12.11.31之前版本存在竞争条件问题漏洞，该漏洞源于ACAP框架存在TOCTOU竞争条件，可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Axis Communications AB AXIS OS 12.0.0 ~ 12.11.31 -

II. Public POCs for CVE-2026-5303

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III. Intelligence Information for CVE-2026-5303

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Vendor Advisories for CVE-2026-5303 (1)

Same Patch Batch · Axis Communications AB · 2026-08-11 · 6 CVEs total

CVE-2026-4757 7.2 HIGH AXIS OS 权限许可和访问控制问题漏洞
CVE-2026-6181 5.9 MEDIUM AXIS OS 授权问题漏洞
CVE-2026-5304 5.7 MEDIUM AXIS OS 软件供应链问题漏洞
CVE-2026-8158 5.3 MEDIUM AXIS Signed Video Framework 安全漏洞
CVE-2026-6505 5.1 MEDIUM AXIS OS 竞争条件问题漏洞

IV. Related Vulnerabilities

Same product: AXIS OS
Same vendor: Axis Communications AB
Same weakness: CWE-367

V. Comments for CVE-2026-5303

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