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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2025-35973

CVE-2025-35973: 1 tracked advisory record across 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

Red Hat

1 advisory
  • Advisory severityHigh7.2

    High [CVE-2025-35973] Privilege escalation in Ring 0 via improper value handling

    CVE-2025-35973Source published Source updated

    Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts. Red Hat is aware of a hardware vulnerability affecting some Intel processors that could allow a local attacker who already has privileged…

    Affected products in this advisory
    • Red Hat Enterprise Linux 8
    • Confidential Compute Attestation
    • Red Hat Enterprise Linux 10
    • Red Hat Enterprise Linux 6

    6 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • microcode_ctl-4:20260812-1.el8_10
    • RHSA-2026:65147
    Mitigation guidance
    • This is a hardware-level vulnerability in the affected Intel processors. There is no code-level fix available in Red Hat OpenShift sandboxed containers or other affected Red Hat components; the issue must be addressed at the processor firmware layer. Red Hat recommends that customers apply the latest CPU microcode or system firmware update from their hardware manufacturer. Intel has released microcode updates addressing this issue; see Intel Security Advisory INTEL-SA-01428 (https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01428.html) for affected processor families and update guidance. Intel has indicated that a further Trusted Computing Base (TCB) recovery is planned for this issue. Red Hat will update this guidance if additional remediation steps become necessary once that information is available.
    Full advisory and evidenceOpen source bulletin

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