WID-SEC-W-2026-1599

Vulnerability from csaf_certbund - Published: 2026-05-19 22:00 - Updated: 2026-05-20 22:00
Summary
Unbound: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Unbound ist ein validierender, rekursiver DNS-Resolver.
Angriff: Ein Angreifer kann mehrere Schwachstellen in Unbound ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux - UNIX
CVE-2026-32792
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-33278
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-40622
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-41292
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-42534
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-42923
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-42944
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-42959
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-42960
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-44390
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
CVE-2026-44608
Affected products
Product Identifier Version Remediation
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
Open Source Unbound <1.25.1
Open Source / Unbound
 <1.25.1
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
Fedora Linux
Fedora
 cpe:/o:fedoraproject:fedora:- —
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Unbound ist ein validierender, rekursiver DNS-Resolver.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Unbound ausnutzen, um einen nicht n\u00e4her spezifizierten Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-1599 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1599.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1599 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1599"
      },
      {
        "category": "external",
        "summary": "Unbound 1.25.1 release vom 2026-05-19",
        "url": "https://nlnetlabs.nl/news/2026/May/20/unbound-1.25.1-released/"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8282-1 vom 2026-05-20",
        "url": "https://ubuntu.com/security/notices/USN-8282-1"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-3223DED15E vom 2026-05-20",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-3223ded15e"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:19752 vom 2026-05-20",
        "url": "https://access.redhat.com/errata/RHSA-2026:19752"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2026-49F37E16AA vom 2026-05-20",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2026-49f37e16aa"
      }
    ],
    "source_lang": "en-US",
    "title": "Unbound: Mehrere Schwachstellen erm\u00f6glichen nicht spezifizierten Angriff",
    "tracking": {
      "current_release_date": "2026-05-20T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-21T07:35:44.356+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1599",
      "initial_release_date": "2026-05-19T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-19T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-05-20T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Open Source, Ubuntu, European Union Vulnerability Database, Fedora und Red Hat aufgenommen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c1.25.1",
                "product": {
                  "name": "Open Source Unbound \u003c1.25.1",
                  "product_id": "T054382"
                }
              },
              {
                "category": "product_version",
                "name": "1.25.1",
                "product": {
                  "name": "Open Source Unbound 1.25.1",
                  "product_id": "T054382-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:nlnetlabs:unbound:1.25.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Unbound"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-32792",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-32792"
    },
    {
      "cve": "CVE-2026-33278",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-33278"
    },
    {
      "cve": "CVE-2026-40622",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-40622"
    },
    {
      "cve": "CVE-2026-41292",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-41292"
    },
    {
      "cve": "CVE-2026-42534",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-42534"
    },
    {
      "cve": "CVE-2026-42923",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-42923"
    },
    {
      "cve": "CVE-2026-42944",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-42944"
    },
    {
      "cve": "CVE-2026-42959",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-42959"
    },
    {
      "cve": "CVE-2026-42960",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-42960"
    },
    {
      "cve": "CVE-2026-44390",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-44390"
    },
    {
      "cve": "CVE-2026-44608",
      "product_status": {
        "known_affected": [
          "67646",
          "T054382",
          "T000126",
          "74185"
        ]
      },
      "release_date": "2026-05-19T22:00:00.000+00:00",
      "title": "CVE-2026-44608"
    }
  ]
}


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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.