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bind9.18 vulnerabilities

Vulnerabilities published for bind9.18 in the last 30 days: 2. Listed in the KEV catalogue: 0.

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Vulnerabilities: 7

  1. RLSA-2026:89746

    Medium · CVSS 5.9Fix available

    Moderate: bind9.18 security update

    BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Security Fix(es): * bind9: bind: BIND 9: Denial of Service via crafted DNSSEC responses (CVE-2026-19662) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 2:9.18.29-14.el9_8.11
    Published Updated
  2. RLSA-2026:75578

    High · CVSS 7.5Fix available

    Important: bind9.18 security update

    BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Security Fix(es): * bind: BIND 9: Remote Denial of Service via cached SVCB/HTTPS AliasMode records (CVE-2026-81736) * bind9: bind: BIND 9: Denial of Service via 16-bit length truncation in DNS negative cache handling (CVE-2026-19667) * bind: BIND resolver: Denial of Service due to resource exhaustion in SVCB/HTTPS Al

    • Update to 2:9.18.29-14.el9_8.10
    Published Updated
  3. RLSA-2026:55442

    High · CVSS 8.6Fix available

    Important: bind9.18 security update

    BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Security Fix(es): * bind9: bind: Potential wildcard CNAME RPZ policy bypass (CVE-2026-11331) * bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field (CVE-2026-13321) * bind: bind9: Potential memory usage beyond configured limits (CVE-2026-11622) * bind: bind9: Cache poisoning via label count discrepa

    • Update to 2:9.18.29-14.el9_8.8
    Published Updated
  4. RLSA-2026:24368

    High · CVSS 7.5Fix available

    Important: bind9.18 security update

    BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Security Fix(es): * bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation (CVE-2026-3039) * bind: BIND: Denial of Service via specially crafted DNS messages (CVE-2026-5946) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information,

    • Update to 2:9.18.29-14.el9_8.2
    Published Updated
  5. RLSA-2026:7915

    High · CVSS 7.5Fix available

    Important: bind9.18 security update

    BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Security Fix(es): * bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone (CVE-2026-1519) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 2:9.18.29-5.el9_7.4
    Published Updated
  6. RLSA-2025:21111

    High · CVSS 8.6Fix available

    Important: bind9.18 security update

    BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Security Fix(es): * bind: Cache poisoning attacks with unsolicited RRs (CVE-2025-40778) * bind: Cache poisoning due to weak PRNG (CVE-2025-40780) * bind: Resource exhaustion via malformed DNSKEY handling (CVE-2025-8677) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments

    • Update to 2:9.18.29-5.el9_7.2
    Published Updated
  7. RLSA-2025:1670

    Not ratedFix available

    Important: bind9.18 security update

    BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Security Fix(es): * bind: bind9: Many records in the additional section cause CPU exhaustion (CVE-2024-11187) * bind: bind9: DNS-over-HTTPS implementation suffers from multiple issues under heavy query load (CVE-2024-12705) For more details about the security issue(s), including the impact, a CVSS score, acknowledgme

    • Update to 2:9.18.29-1.el9_5.1
    Published Updated

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