ncsc-2025-0268
Vulnerability from csaf_ncscnl
Published
2025-08-26 13:11
Modified
2025-08-26 17:34
Summary
Kwetsbaarheden verholpen in Citrix NetScaler ADC en Gateway

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
Citrix heeft kwetsbaarheden verholpen in de NetScaler ADC en Gateway
Interpretaties
De kwetsbaarheden zijn gerelateerd aan geheugenoverflow en onjuiste toegangscontroleconfiguraties. Kwaadwillenden kunnen de kwetsbaarheden misbruiken om een Denial-of-Service te veroorzaken en mogelijk willekeurige code uit te voeren op het kwetsbare systeem. De kwetsbaarheden zijn van toepassing op de On-Premise installaties van ADC en Gateway. De cloudoplossingen zijn door Citrix inmiddels gepatched. Citrix meldt berichten te hebben ontvangen dat de kwetsbaarheid met kenmerk CVE-2025-7775 actief is misbruikt. De kwetsbare configuratie die door Citrix is aangegeven is dermate veel voorkomend dat het NCSC op korte termijn grootschalig misbruik verwacht. Het NCSC adviseert met klem de update zo spoedig mogelijk te installeren.
Oplossingen
Citrix heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie. Het NCSC heeft eerder een detectiescript gepubliceerd waarmee compromittatie kan worden gedetecteerd. Dit script is ontwikkeld om compromittatie te detecteren voor de kwetsbaarheid met kenmerk CVE-2025-6543. Dit script is ook geschikt om compromittatie door middel van latere kwetsbaarheden te detecteren. Het NCSC raadt aan om dit script uit te voeren op NetScaler systemen. Voor de oudere kwetsbaarheden heeft het NCSC beveiligingsadviezen [NCSC-2025-0203](https://advisories.ncsc.nl/2025/ncsc-2025-0203.html) en [NCSC-2025-0196](https://advisories.ncsc.nl/2025/ncsc-2025-0196.html) gepubliceerd. Het detectiescript kan worden verkregen via https://github.com/NCSC-NL/citrix-2025/blob/main/live-host-bash-check/TLPCLEAR_check_script_cve-2025-6543-v1.8.sh De handleiding voor dit script kan worden verkregen via https://github.com/NCSC-NL/citrix-2025/blob/main/live-host-bash-check/README.md
Kans
high
Schade
high
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-284
Improper Access Control


To clipboard 

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "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:\n\n    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.\n\n    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.\n    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."
      },
      {
        "category": "description",
        "text": "Citrix heeft kwetsbaarheden verholpen in de NetScaler ADC en Gateway",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheden zijn gerelateerd aan geheugenoverflow en onjuiste toegangscontroleconfiguraties. Kwaadwillenden kunnen de kwetsbaarheden misbruiken om een Denial-of-Service te veroorzaken en mogelijk willekeurige code uit te voeren op het kwetsbare systeem.\nDe kwetsbaarheden zijn van toepassing op de On-Premise installaties van ADC en Gateway. De cloudoplossingen zijn door Citrix inmiddels gepatched.\n\nCitrix meldt berichten te hebben ontvangen dat de kwetsbaarheid met kenmerk CVE-2025-7775 actief is misbruikt.\n\nDe kwetsbare configuratie die door Citrix is aangegeven is dermate veel voorkomend dat het NCSC op korte termijn grootschalig misbruik verwacht. Het NCSC adviseert met klem de update zo spoedig mogelijk te installeren.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Citrix heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.\n\nHet NCSC heeft eerder een detectiescript gepubliceerd waarmee compromittatie kan worden gedetecteerd. Dit script is ontwikkeld om compromittatie te detecteren voor de kwetsbaarheid met kenmerk CVE-2025-6543. Dit script is ook geschikt om compromittatie door middel van latere kwetsbaarheden te detecteren. Het NCSC raadt aan om dit script uit te voeren op NetScaler systemen.\n\nVoor de oudere kwetsbaarheden heeft het NCSC beveiligingsadviezen [NCSC-2025-0203](https://advisories.ncsc.nl/2025/ncsc-2025-0203.html) en [NCSC-2025-0196](https://advisories.ncsc.nl/2025/ncsc-2025-0196.html) gepubliceerd.\n\nHet detectiescript kan worden verkregen via https://github.com/NCSC-NL/citrix-2025/blob/main/live-host-bash-check/TLPCLEAR_check_script_cve-2025-6543-v1.8.sh\n\nDe handleiding voor dit script kan worden verkregen via https://github.com/NCSC-NL/citrix-2025/blob/main/live-host-bash-check/README.md",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Restriction of Operations within the Bounds of a Memory Buffer",
        "title": "CWE-119"
      },
      {
        "category": "general",
        "text": "Improper Access Control",
        "title": "CWE-284"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://advisories.ncsc.nl/2025/ncsc-2025-0196.html"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://advisories.ncsc.nl/2025/ncsc-2025-0203.html"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://github.com/NCSC-NL/citrix-2025/blob/main/live-host-bash-check/README.md"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://github.com/NCSC-NL/citrix-2025/blob/main/live-host-bash-check/TLPCLEAR_check_script_cve-2025-6543-v1.8.sh"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX694938\u0026articleTitle=NetScaler_ADC_and_NetScaler_Gateway_Security_Bulletin_for_CVE_2025_7775_CVE_2025_7776_and_CVE_2025_8424"
      }
    ],
    "title": "Kwetsbaarheden verholpen in Citrix NetScaler ADC en Gateway",
    "tracking": {
      "current_release_date": "2025-08-26T17:34:30.428328Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.2"
        }
      },
      "id": "NCSC-2025-0268",
      "initial_release_date": "2025-08-26T13:11:42.925280Z",
      "revision_history": [
        {
          "date": "2025-08-26T13:11:42.925280Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        },
        {
          "date": "2025-08-26T13:58:03.607399Z",
          "number": "1.0.1",
          "summary": "Nader onderzoek toont aan dat de kwetsbare configuratie zeer veel voorkomt waardoor grootschalig misbruik waarschijnlijk wordt."
        },
        {
          "date": "2025-08-26T17:34:30.428328Z",
          "number": "1.0.2",
          "summary": "Het NCSC heeft een detectiescript gepubliceerd om te controleren of compromittatie heeft plaatsgevonden."
        }
      ],
      "status": "final",
      "version": "1.0.2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/\u003c 12.1-55.330",
                "product": {
                  "name": "vers:unknown/\u003c 12.1-55.330",
                  "product_id": "CSAFPID-3080151"
                }
              }
            ],
            "category": "product_name",
            "name": "NetScaler ADC 12.1-FIPS"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/\u003c 12.1-55.330",
                "product": {
                  "name": "vers:unknown/\u003c 12.1-55.330",
                  "product_id": "CSAFPID-3080152"
                }
              }
            ],
            "category": "product_name",
            "name": "NetScaler ADC 12.1-NDcPP"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/\u003c 13.1-37.241",
                "product": {
                  "name": "vers:unknown/\u003c 13.1-37.241",
                  "product_id": "CSAFPID-3080147"
                }
              }
            ],
            "category": "product_name",
            "name": "NetScaler ADC 13.1-FIPS"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/\u003c 13.1-37.241",
                "product": {
                  "name": "vers:unknown/\u003c 13.1-37.241",
                  "product_id": "CSAFPID-3080148"
                }
              }
            ],
            "category": "product_name",
            "name": "NetScaler ADC 13.1-NDcPP"
          }
        ],
        "category": "vendor",
        "name": "Citrix"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/\u003c 13.1-59.22",
                "product": {
                  "name": "vers:unknown/\u003c 13.1-59.22",
                  "product_id": "CSAFPID-3080142"
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:unknown/\u003c 14.1-47.48",
                "product": {
                  "name": "vers:unknown/\u003c 14.1-47.48",
                  "product_id": "CSAFPID-3080141"
                }
              }
            ],
            "category": "product_name",
            "name": "Netscaler ADC, Netscaler Gateway"
          }
        ],
        "category": "vendor",
        "name": "citrix"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-7775",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Restriction of Operations within the Bounds of a Memory Buffer",
          "title": "CWE-119"
        },
        {
          "category": "general",
          "text": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/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",
          "title": "CVSSV4"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-3080151",
          "CSAFPID-3080152",
          "CSAFPID-3080147",
          "CSAFPID-3080148",
          "CSAFPID-3080142",
          "CSAFPID-3080141"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-7775 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-7775.json"
        }
      ],
      "title": "CVE-2025-7775"
    },
    {
      "cve": "CVE-2025-7776",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Restriction of Operations within the Bounds of a Memory Buffer",
          "title": "CWE-119"
        },
        {
          "category": "general",
          "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/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",
          "title": "CVSSV4"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-3080151",
          "CSAFPID-3080152",
          "CSAFPID-3080147",
          "CSAFPID-3080148",
          "CSAFPID-3080142",
          "CSAFPID-3080141"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-7776 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-7776.json"
        }
      ],
      "title": "CVE-2025-7776"
    },
    {
      "cve": "CVE-2025-8424",
      "cwe": {
        "id": "CWE-1284",
        "name": "Improper Validation of Specified Quantity in Input"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Validation of Specified Quantity in Input",
          "title": "CWE-1284"
        },
        {
          "category": "general",
          "text": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L",
          "title": "CVSSV4"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-3080151",
          "CSAFPID-3080152",
          "CSAFPID-3080147",
          "CSAFPID-3080148",
          "CSAFPID-3080142",
          "CSAFPID-3080141"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-8424 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-8424.json"
        }
      ],
      "title": "CVE-2025-8424"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.