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Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-19666

CVE-2026-19666: 2 tracked advisory records across NetApp, Red Hat. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

Vendor advisory comparison

NetApp

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-19666] ISC BIND Vulnerability in NetApp Products

    NTAP-20260930-0003Source published Source updated

    ISC BIND versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27 and 9.21.0 through 9.21.25 are susceptible to a vulnerability which when successfully exploited could lead to an unexpected program exit and a Denial of Service (DoS). Successful exploitation of this vulnerability could lead to Denial of Service (DoS). NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.

    Affected products in this advisory
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    • 9.11.0
    • 9.18.50
    • 9.20.0
    • 9.20.27

    2 more entries in the full advisory.

    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-19666] Denial of Service via malformed DNS64 responses

    CVE-2026-19666Source published Source updated

    Denial of Service via malformed DNS64 responses. Red Hat rates this important (CVSS 7.5). Weakness: CWE-617. Red Hat lists fixing advisory RHSA-2026:75577 with package bind9.18-32:9.18.29-14.el9_8.10, bind-main-9.20.29-0.1.hum1, bind-32:9.18.33-15.el10_2.12, bind-32:9.16.23-40.el9_8.10. Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 10.

    Related products — impact not confirmed
    • Red Hat Enterprise Linux 9
    • Red Hat Enterprise Linux 10
    Source-reported affected versions
    • 9.11.0
    • 9.18.50
    • 9.20.0
    • 9.20.27

    4 more entries in the full advisory.

    Source-reported fixed versions
    • bind9.18-32:9.18.29-14.el9_8.10
    • bind-main-9.20.29-0.1.hum1
    • bind-32:9.18.33-15.el10_2.12
    • bind-32:9.16.23-40.el9_8.10

    1 more entries in the full advisory.

    Mitigation guidance
    • To mitigate this issue, disable the `dns64` feature in the BIND resolver configuration if it is not required. This can be done by removing or commenting out the `dns64` configuration block in `named.conf` or related configuration files. After modifying the configuration, the BIND service (`named`) must be reloaded or restarted for the changes to take effect. This action may temporarily interrupt DNS resolution services.
    Full advisory and evidenceOpen source bulletin

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