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CVE-2026-33390— Incorrect privilege assignment for Arc sensors in Guardian/CMC before 26.2.0

Quick assessment

Affected
Nozomi Networks Guardian
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.

Nozomi Networks Guardian是美国Nozomi Networks公司的网络安全产品。 Nozomi Networks Guardian 26.2.0之前版本和CMC 26.2.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于同步功能中Arc sensors接收CLI权限导致权限分配错误，可能允许经过身份验证的有限权限用户通过同步推送管理CLI命令，从而更改设备配置和/或影响其可用性。

CVSS 8.1 · High EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 2

VendorProduct Version RangeStatus
Nozomi Networks CMC < 26.2.0 affected
Nozomi Networks Guardian < 26.2.0 affected
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I. Basic Information for CVE-2026-33390

Vulnerability Information
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Vulnerability Title
Incorrect privilege assignment for Arc sensors in Guardian/CMC before 26.2.0
Source: CVE Program / CVE List V5
Vulnerability Description
An Incorrect Privilege Assignment vulnerability was discovered in the synchronization functionality due to Arc sensors receiving CLI permissions. An authenticated user with limited privileges can push administrative CLI commands through the sync, altering the device configuration, and/or affecting its availability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权授予不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Nozomi Networks Guardian 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nozomi Networks Guardian是美国Nozomi Networks公司的网络安全产品。 Nozomi Networks Guardian 26.2.0之前版本和CMC 26.2.0之前版本存在权限许可和访问控制问题漏洞，该漏洞源于同步功能中Arc sensors接收CLI权限导致权限分配错误，可能允许经过身份验证的有限权限用户通过同步推送管理CLI命令，从而更改设备配置和/或影响其可用性。
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
Nozomi Networks Guardian 0 ~ 26.2.0 -
Nozomi Networks CMC 0 ~ 26.2.0 -

II. Public POCs for CVE-2026-33390

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III. Intelligence Information for CVE-2026-33390

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Vendor Advisories for CVE-2026-33390 (1)

Same Patch Batch · Nozomi Networks · 2026-07-09 · 6 CVEs total

CVE-2026-31985 8.1 HIGH Disabled and non-configurable TLS certificate validation in n2os-tui when connecting the R
CVE-2026-31984 7.5 HIGH DoS through oversized audit log entries in Guardian/CMC before 26.2.0
CVE-2026-31982 7.1 HIGH Open Redirect in SAML Single Sign-On in Guardian/CMC before 26.2.0
CVE-2026-31981 5.9 MEDIUM HTML injection in Diagram tab and Graph view in Guardian/CMC before 26.2.0
CVE-2026-31983 5.3 MEDIUM Missing authentication in SSH keys synchronization endpoint in Guardian/CMC before 26.2.0

IV. Related Vulnerabilities

Same product: Guardian
Same vendor: Nozomi Networks
Same weakness: CWE-266

V. Comments for CVE-2026-33390

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