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pdns vulnerabilities

Vulnerabilities published for pdns in the last 30 days: 1. Listed in the KEV catalogue: 0.

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Vulnerabilities: 48

  1. CVE-2026-42005

    Medium · CVSS 4.3EPSS 0.62%Fix available

    Insufficient input validation of internal web server

    An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

    • Update to 5.1.2-1
    Published Updated
  2. CVE-2026-33611

    Medium · CVSS 6.5EPSS 0.81%Fix available

    Insufficient validation of HTTPS and SVCB records

    An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.

    • Update to 5.0.4-1
    Published Updated
  3. CVE-2026-33610

    Medium · CVSS 5.9EPSS 0.73%Fix available

    Possible file descriptor exhaustion in forward-dnsupdate

    A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it.

    • Update to 5.0.4-1
    Published Updated
  4. CVE-2026-33608

    High · CVSS 7.4EPSS 0.59%Fix available

    Incomplete domain name sanitization during

    An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.

    • Update to 5.0.4-1
    Published Updated
  5. CVE-2022-27227

    High · CVSS 7.5EPSS 5.18%Fix available

    CVE-2022-27227

    In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers.

    • Update to 4.6.1-1
    Published Updated
  6. CVE-2020-24698

    Critical · CVSS 9.8EPSS 3.16%Fix available

    CVE-2020-24698

    An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker might be able to cause a double-free, leading to a crash or possibly arbitrary code execution. by sending crafted queries with a GSS-TSIG signature.

    • Update to 4.4.0-1
    Published Updated
  7. CVE-2020-24697

    High · CVSS 7.5EPSS 4.41%Fix available

    CVE-2020-24697

    An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can cause a denial of service by sending crafted queries with a GSS-TSIG signature.

    • Update to 4.4.0-1
    Published Updated
  8. CVE-2020-24696

    High · CVSS 8.1EPSS 1.36%Fix available

    CVE-2020-24696

    An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can trigger a race condition leading to a crash, or possibly arbitrary code execution, by sending crafted queries with a GSS-TSIG signature.

    • Update to 4.4.0-1
    Published Updated

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