CVE-2026-33388Network attack vector

Credential tampering via insufficient privilege validation

Published Sep 8, 2026 · Updated Sep 8, 2026

Incorrect authorization in Nozomi Networks Guardian and CMC before 26.3.0 allows remote authenticated users to alter credential entries. The Credentials Manager inadequately validates limited accounts' privileges before permitting entry views, property changes, or deletion. Exploitation requires a low-privilege web-management account; changes can interrupt dependent-device authentication, while crafted properties can indirectly disclose stored credentials.

CVSS severity6.4
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Nozomi Networks Guardian and CMC before 26.3.0 allows remote authenticated users to alter credential entries. The Credentials Manager inadequately validates limited accounts' privileges before permitting entry views, property changes, or deletion. Exploitation requires a low-privilege web-management account; changes can interrupt dependent-device authentication, while crafted properties can indirectly disclose stored credentials.

The record

CVE
CVE-2026-33388
Published
Sep 8, 2026
Updated
Sep 8, 2026
Vendor
Nozomi Networks
Product
Guardian
Classifications
CWE-863, CAPEC-122, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 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=0 <26.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nozomi Networks · Guardianversion=0 <26.3.0
Nozomi Networks · Central Management Console (CMC)version=0 <26.3.0

Published CVSS scores

7.4Nozomi NetworksCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
6.4Nozomi NetworksCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:L

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
CAPEC-122Privilege Abuse
T1555Credentials from Password Stores

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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