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CVE-2026-33388— Incorrect authorization in Credentials Manager in Guardian/CMC before 26.3.0

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公司的一款工业网络安全监测与威胁检测产品。 Nozomi Networks Guardian 26.3.0之前版本和Nozomi Networks CMC 26.3.0之前版本存在授权问题漏洞，该漏洞源于用户权限验证不足，可能导致远程低权限认证用户查看、删除或编辑凭据管理器条目，干扰依赖设备的身份验证或间接获取凭据。

CVSS 7.4 · High EPSS 0.41% · P35

Possible ATT&CK Techniques 2 AI

T1549.003 T1083.004

Affected Version Matrix 2

VendorProduct Version RangeStatus
Nozomi Networks CMC < 26.3.0 affected
Nozomi Networks Guardian < 26.3.0 affected
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I. Basic Information for CVE-2026-33388

Vulnerability Information
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Vulnerability Title
Incorrect authorization in Credentials Manager in Guardian/CMC before 26.3.0
Source: CVE Program / CVE List V5
Vulnerability Description
An access control vulnerability was discovered in the Credentials Manager functionality due to insufficient validation of user privileges. A remote authenticated user with limited privileges can view a limited subset of the available entries in the Credentials Manager. The actual credential values are not directly visible, but the user can delete entries or edit their properties. An attacker who deletes or edits an entry can disrupt authentication for dependent devices, and one who manipulates an entry's configuration may be able to indirectly obtain the credentials.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Nozomi Networks Guardian 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nozomi Networks Guardian是美国Nozomi Networks公司的一款工业网络安全监测与威胁检测产品。 Nozomi Networks Guardian 26.3.0之前版本和Nozomi Networks CMC 26.3.0之前版本存在授权问题漏洞，该漏洞源于用户权限验证不足，可能导致远程低权限认证用户查看、删除或编辑凭据管理器条目，干扰依赖设备的身份验证或间接获取凭据。
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 ~ 26.3.0 -
Nozomi Networks CMC 0 ~ 26.3.0 -

II. Public POCs for CVE-2026-33388

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III. Intelligence Information for CVE-2026-33388

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Vendor Advisories for CVE-2026-33388 (1)

Same Patch Batch · Nozomi Networks · 2026-09-08 · 5 CVEs total

CVE-2026-33389 7.5 HIGH Disabled and non-configurable certificate/host key validation in Smart Polling in Guardian
CVE-2026-33391 5.4 MEDIUM Incorrect authorization in Smart Polling configuration in Guardian/CMC before 26.3.0
CVE-2026-33387 4.6 MEDIUM Insufficient sanitization of Dashboards in Guardian/CMC before 26.3.0
CVE-2026-33920 3.5 LOW Cross-site request forgery in the Guardian/CMC login before 26.3.0

IV. Related Vulnerabilities

Same product: Guardian
Same vendor: Nozomi Networks
Same weakness: CWE-863

V. Comments for CVE-2026-33388

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