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Highest advisory severityCritical 2 vendors · 3 advisories

CVE-2026-18798

CVE-2026-18798: 3 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.

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Vendor advisory comparison

NetApp

2 advisories
  • Advisory severityCritical9.8

    Critical [CVE-2026-14457 +7] August 2026 FreeBSD OpenSSL Vulnerabilities in NetApp Products

    NTAP-20260903-0001Source published Source updated

    This bulletin covers 8 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.

    All supported versions of FreeBSD prior to 15.1-RELEASE-p3, 15.0-RELEASE-p13, and 14.4-RELEASE-p9 are susceptible to vulnerabilities in OpenSSL which when successfully exploited could lead to impacts ranging from a Denial of Service (DoS) to a potential remote code execution. Successful exploitation of these vulnerabilities could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS). 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
    • 15.1
    • 15.0
    • 14.4
    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
  • Advisory severityHigh7.5

    High [CVE-2026-18798] OpenSSL Vulnerability in NetApp Products

    NTAP-20260902-0004Source published Source updated

    OpenSSL versions 4.0, 3.6, and 3.5 are susceptible to a vulnerability which when successfully exploited could lead to a double free resulting in heap corruption, which typically results in termination of QUIC server process, leading to 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
    Affected-version details not available in this record.
    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-2026-18798] QUIC server may trigger double free when processing INITIAL packet

    CVE-2026-18798Source published Source updated

    Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for initial packet. Impact summary: Double free leads to heap corruption, which typically results in termination of QUIC server process, leading to Denial of Service. There is so far no evidence that this double free is exploitable for remote code execution, thus it is considered highly improbable. CWE: CWE-415: Double Free Description: In order to validate initial packet, OpenSSL QUIC stack default packet handler (port_default_packet_handler()) creates a so-called QRX object. If the initial packet validates successfully with QRX object, the default packet handler proceeds to channel (connection object) creation. The QRX object used for packet validation is passed to…

    Affected products in this advisory
    • Red Hat Enterprise Linux 10
    • Red Hat Enterprise Linux 9
    • Cert Manager support for Red Hat OpenShift release 1.20
    • Red Hat Hardened Images

    8 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • openssl-1:3.5.8-1.el10_2
    • openssl-1:3.5.8-1.el9_8
    • cert-manager/jetstack-cert-manager-rhel9:1790223279
    • cert-manager/cert-manager-istio-csr-rhel9:1790223719

    24 more entries in the full advisory.

    Mitigation guidance
    • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
    Full advisory and evidenceOpen source bulletin

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