GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

NN-2026:13-01

Vulnerability from csaf_nozominetworks - Published: 2026-07-07 11:00 - Updated: 2026-07-07 11:00
Summary
Incorrect privilege assignment for Arc sensors in Guardian/CMC before 26.2.0
Severity
High
Notes
Risk Level for Nozomi customers: High
CVE-2026-33390
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE-266 - Incorrect Privilege Assignment
Affected products
Product Identifier Version Remediation
Nozomi Networks Guardian 26.2.0
Nozomi Networks / Guardian
 26.2.0
Nozomi Networks CMC 26.2.0
Nozomi Networks / CMC
 26.2.0
Product Identifier Version Remediation
Nozomi Networks Guardian <26.2.0
Nozomi Networks / Guardian
 vers:gem/<26.2.0
Mitigation
Vendor Fix
Nozomi Networks CMC <26.2.0
Nozomi Networks / CMC
 vers:gem/<26.2.0
Mitigation
Vendor Fix
Threats
Impact An authenticated user with limited privileges can push administrative CLI commands through the sync, altering the device configuration, and/or affecting its availability.
References
Acknowledgments
Nozomi Networks Product Security team Andrea Palanca
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "HIGH"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "other",
        "text": "High",
        "title": "Risk Level for Nozomi customers"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "Nozomi Networks Product Security team can be reached at prodsec@nozominetworks.com",
      "name": "Nozomi Networks Product Security",
      "namespace": "https://security.nozominetworks.com/psirt"
    },
    "title": "Incorrect privilege assignment for Arc sensors in Guardian/CMC before 26.2.0",
    "tracking": {
      "aliases": [
        "CVE-2026-33390"
      ],
      "current_release_date": "2026-07-07T11:00:00.000Z",
      "id": "NN-2026:13-01",
      "initial_release_date": "2026-07-07T11:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-07-07T11:00:00.000Z",
          "number": "1",
          "summary": "Initial revision"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:gem/\u003c26.2.0",
                "product": {
                  "name": "Nozomi Networks Guardian \u003c26.2.0",
                  "product_id": "CSAFPID-0001"
                }
              },
              {
                "category": "product_version",
                "name": "26.2.0",
                "product": {
                  "name": "Nozomi Networks Guardian 26.2.0",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Guardian"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:gem/\u003c26.2.0",
                "product": {
                  "name": "Nozomi Networks CMC \u003c26.2.0",
                  "product_id": "CSAFPID-0003"
                }
              },
              {
                "category": "product_version",
                "name": "26.2.0",
                "product": {
                  "name": "Nozomi Networks CMC 26.2.0",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "CMC"
          }
        ],
        "category": "vendor",
        "name": "Nozomi Networks"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Andrea Palanca"
          ],
          "organization": "Nozomi Networks Product Security team",
          "summary": "finding this issue during an internal investigation"
        }
      ],
      "cve": "CVE-2026-33390",
      "cwe": {
        "id": "CWE-266",
        "name": "Incorrect Privilege Assignment"
      },
      "discovery_date": "2026-07-07T11:00:00.000Z",
      "ids": [
        {
          "system_name": "Nozomi Networks Security Advisory ID",
          "text": "NN-2026:13-01"
        }
      ],
      "notes": [
        {
          "category": "summary",
          "text": "An Incorrect Privilege Assignment vulnerability was discovered in the synchronization functionality due to Arc sensors receiving CLI permissions.",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-0002",
          "CSAFPID-0004"
        ],
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0003"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "Mitre CVE entry",
          "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33390"
        },
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://security.nozominetworks.com/csaf/2026/nn-2026_13-01.json"
        },
        {
          "category": "self",
          "summary": "Human-readable advisory.",
          "url": "https://security.nozominetworks.com/NN-2026:13-01"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Review all enabled sensors and disallow or delete untrusted ones.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Upgrade to v26.2.0 or later.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0003"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "An authenticated user with limited privileges can push administrative CLI commands through the sync, altering the device configuration, and/or affecting its availability."
        }
      ],
      "title": "Incorrect privilege assignment for Arc sensors in Guardian/CMC before 26.2.0"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.