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    CVE-2025-8677

    Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion. This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.

    Published:Oct 22, 2025
    Last Modified:Apr 15, 2026
    EPS:Oct 22, 2025
    EPSS Score:0.00084
    CVSS Score:7.5

    Affected Products

    Vendor
    Isc
    Product
    Bind 9

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2025-40775 (CVSS 7.5) — When an incoming DNS protocol message includes a Transaction Signature (TSIG), BIND always checks it. If the …
    CVE-2023-5517 (CVSS 7.5) — A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdo…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High