Incorrect authorization in Credentials Manager in Guardian/CMC before 26.3.0
Summary
| CVE | CVE-2026-33388 |
|---|---|
| State | PUBLISHED |
| Assigner | Nozomi |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-08 14:17:22 UTC |
| Updated | 2026-10-15 02:19:21 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 6.4 MEDIUM from [email protected]
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-863 | CWE-863 CWE-863 Incorrect authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 6.4 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:L/E:X/C... |
| 4.0 | CNA | CVSS | 6.4 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:L |
| 3.1 | [email protected] | Secondary | 7.4 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |
| 3.1 | CNA | CVSS | 7.4 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |
CVSS v4.0 Breakdown
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Nozomi Networks | Guardian | affected 26.3.0 semver | Not specified |
| CNA | Nozomi Networks | CMC | affected 26.3.0 semver | Not specified |
| ADP | Siemens | RUGGEDCOM APE1808 | affected * custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| security.nozominetworks.com/NN-2026:19-01 | [email protected] | security.nozominetworks.com | |
| cert-portal.siemens.com/productcert/html/ssa-911336.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: This issue was found by Elia Battiston of Nozomi Networks during an internal investigation. (en)
Additional Advisory Data
Solutions
CNA: Upgrade to v26.3.0 or later.
Workarounds
CNA: Use internal firewall features to limit access to the web management interface.
CNA: Review all accounts with access to it and delete unnecessary ones.
CNA: Review the existing entries in the Credentials Manager for unauthorized modifications.