NCSC-2026-0407

Vulnerability from csaf_ncscnl - Published: 2026-10-08 08:33 - Updated: 2026-10-08 08:33
Summary
Kwetsbaarheden verholpen in Cisco License On-Prem
Notes
The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten: Cisco heeft meerdere kwetsbaarheden verholpen in Cisco License On-Prem.
Interpretaties: De kwetsbaarheden bevinden zich in de webgebaseerde managementinterface en API-eindpunten van Cisco License On-Prem. Niet-geauthenticeerde aanvallers kunnen onder meer wachtwoorden resetten, bestanden schrijven of DoS-condities veroorzaken. Geauthenticeerde aanvallers met beheerdersrechten kunnen willekeurige commando's met rootrechten uitvoeren en via SQL-injectie toegang krijgen tot interne database-inhoud. Daarnaast zijn kwetsbaarheden vastgesteld rond authenticatie, cryptografische verificatie, credentialbescherming en code-injectie. De kwetsbaarheden kunnen gevolgen hebben voor de vertrouwelijkheid, integriteit en beschikbaarheid van het product. De kwetsbaarheden bevinden zich in de webinterface en API van Cisco License On-Prem. Het is af te raden om dergelijke interfaces publiek toegankelijk te hebben. Maar ook op interne netwerken is het aan te raden dergelijke interfaces af te steunen in separate beheeromgevingen, of additionele maatregelen te nemen om ongeautoriseerde toegang zo veel mogelijk te beperken.
Oplossingen: Cisco heeft updates uitgebracht om de kwetsbaarheden in Cisco License On-Prem te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans: medium
Schade: high
CWE-23: Relative Path Traversal
CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-862: Missing Authorization
CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE-306: Missing Authentication for Critical Function
CWE-347: Improper Verification of Cryptographic Signature
CWE-522: Insufficiently Protected Credentials
CVE-2026-20328

Multiple vulnerabilities in Cisco License On-Prem's web interface and API allow unauthenticated remote attackers to reset arbitrary account passwords, gain unauthorized access including administrative privileges, access sensitive data, or cause denial of service.

9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-862 - Missing Authorization
Affected products
Product Identifier Version Remediation
vers:unknown/*
Cisco / Cisco License On-Prem
 vers:unknown/*
CVE-2026-76437

Multiple vulnerabilities in Cisco License On-Prem's web interface and API allow authenticated administrators to execute arbitrary root commands and enable remote attackers to gain unauthorized access, access sensitive data, or cause denial of service.

4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected products
Known affected 1 product, the same list as for CVE-2026-20328
CVE-2026-76452

Multiple vulnerabilities in Cisco License On-Prem's web-based management interface and API, including an SQL injection exploitable by authenticated administrators, could lead to unauthorized access, data disclosure, or denial of service.

4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected products
Known affected 1 product, the same list as for CVE-2026-20328
CVE-2026-76454

Multiple vulnerabilities in Cisco License On-Prem, including the Smart Licensing Utility API, allow unauthenticated remote attackers to write arbitrary files, gain unauthorized access, access sensitive information, or cause denial of service due to improper input validation and lack of authentication.

9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE-23 - Relative Path Traversal
Affected products
Known affected 1 product, the same list as for CVE-2026-20328
CVE-2026-76480

Cisco's engineering team for Cisco License On-Prem conducted a comprehensive internal security review resulting in software hardening releases addressing multiple vulnerabilities including improper authentication (CVE-2026-76480, CWE-306).

9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-306 - Missing Authentication for Critical Function
Affected products
Known affected 1 product, the same list as for CVE-2026-20328
CVE-2026-76482

Cisco's License On-Prem engineering team conducted a comprehensive internal security review resulting in software hardening releases addressing multiple CWE-347 input verification vulnerabilities, tracked by CVE-2026-76482.

10.0 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE-347 - Improper Verification of Cryptographic Signature
Affected products
Known affected 1 product, the same list as for CVE-2026-20328
CVE-2026-76483

Cisco's engineering team for Cisco License On-Prem conducted a comprehensive internal security review resulting in software hardening releases addressing multiple vulnerabilities including insufficiently protected credentials (CVE-2026-76483, CWE-522).

9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-522 - Insufficiently Protected Credentials
Affected products
Known affected 1 product, the same list as for CVE-2026-20328
CVE-2026-76484

Cisco's engineering team for Cisco License On-Prem conducted a comprehensive internal security review resulting in software hardening releases that address multiple vulnerabilities, including code injection (CVE-2026-76484, CWE-94).

8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Affected products
Known affected 1 product, the same list as for CVE-2026-20328
References
To clipboard 

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        },
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          "text": "Multiple vulnerabilities in Cisco License On-Prem, including the Smart Licensing Utility API, allow unauthenticated remote attackers to write arbitrary files, gain unauthorized access, access sensitive information, or cause denial of service due to improper input validation and lack of authentication.",
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      "cwe": {
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      },
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        {
          "category": "other",
          "text": "Missing Authentication for Critical Function",
          "title": "CWE-306"
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        {
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          "text": "Improper Verification of Cryptographic Signature",
          "title": "CWE-347"
        },
        {
          "category": "other",
          "text": "Insufficiently Protected Credentials",
          "title": "CWE-522"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s engineering team for Cisco License On-Prem conducted a comprehensive internal security review resulting in software hardening releases addressing multiple vulnerabilities including improper authentication (CVE-2026-76480, CWE-306).",
          "title": "Summary"
        }
      ],
      "product_status": {
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      },
      "references": [
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          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76480.json"
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      ],
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      },
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          "text": "Improper Verification of Cryptographic Signature",
          "title": "CWE-347"
        },
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          "text": "Missing Authentication for Critical Function",
          "title": "CWE-306"
        },
        {
          "category": "other",
          "text": "Insufficiently Protected Credentials",
          "title": "CWE-522"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s License On-Prem engineering team conducted a comprehensive internal security review resulting in software hardening releases addressing multiple CWE-347 input verification vulnerabilities, tracked by CVE-2026-76482.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
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        ]
      },
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          "summary": "CVE-2026-76482 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76482.json"
        }
      ],
      "scores": [
        {
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
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          "products": [
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          ]
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      "title": "CVE-2026-76482"
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      "cwe": {
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        "name": "Insufficiently Protected Credentials"
      },
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          "text": "Insufficiently Protected Credentials",
          "title": "CWE-522"
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          "title": "CWE-306"
        },
        {
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          "title": "CWE-347"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s engineering team for Cisco License On-Prem conducted a comprehensive internal security review resulting in software hardening releases addressing multiple vulnerabilities including insufficiently protected credentials (CVE-2026-76483, CWE-522).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76483 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76483.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1"
          ]
        }
      ],
      "title": "CVE-2026-76483"
    },
    {
      "cve": "CVE-2026-76484",
      "cwe": {
        "id": "CWE-94",
        "name": "Improper Control of Generation of Code (\u0027Code Injection\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "other",
          "text": "Missing Authentication for Critical Function",
          "title": "CWE-306"
        },
        {
          "category": "other",
          "text": "Improper Verification of Cryptographic Signature",
          "title": "CWE-347"
        },
        {
          "category": "other",
          "text": "Insufficiently Protected Credentials",
          "title": "CWE-522"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s engineering team for Cisco License On-Prem conducted a comprehensive internal security review resulting in software hardening releases that address multiple vulnerabilities, including code injection (CVE-2026-76484, CWE-94).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76484 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76484.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1"
          ]
        }
      ],
      "title": "CVE-2026-76484"
    }
  ]
}



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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.



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.