Insufficient control flow management in the Alias Checking Trusted Module (ACTM) firmware for some Intel(R) Xeon(R) processors may allow a privileged user to potentially enable escalation of privilege via local access.

The version of microcode_ctl installed on the remote host is prior to 2.1-47. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2993 advisory.

    Improper buffer restrictions for some Intel(R) Xeon(R) Processor firmware with SGX enabled may allow a     privileged user to potentially enable escalation of privilege via local access. (CVE-2025-20053)

    Missing reference to active allocated resource for some Intel(R) Xeon(R) processors may allow an     authenticated user to potentially enable denial of service via local access. (CVE-2025-21090)

    Insufficient control flow management in the Alias Checking Trusted Module (ACTM) firmware for some     Intel(R) Xeon(R) processors may allow a privileged user to potentially enable escalation of privilege via     local access. (CVE-2025-24305)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1190 advisory.

    Improper buffer restrictions for some Intel(R) Xeon(R) Processor firmware with SGX enabled may allow a     privileged user to potentially enable escalation of privilege via local access. (CVE-2025-20053)

    Missing reference to active allocated resource for some Intel(R) Xeon(R) processors may allow an     authenticated user to potentially enable denial of service via local access. (CVE-2025-21090)

    Insufficient control flow management in the Alias Checking Trusted Module (ACTM) firmware for some     Intel(R) Xeon(R) processors may allow a privileged user to potentially enable escalation of privilege via     local access. (CVE-2025-24305)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Insufficient control flow management in the Alias Checking Trusted Module (ACTM) firmware for some     Intel(R) Xeon(R) processors may allow a privileged user to potentially enable escalation of privilege via     local access. (CVE-2025-24305)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
265067	Amazon Linux 2 : microcode_ctl, --advisory ALAS2-2025-2993 (ALAS-2025-2993)	Nessus	Amazon Linux Local Security Checks	high
264838	Amazon Linux 2023 : microcode_ctl (ALAS2023-2025-1190)	Nessus	Amazon Linux Local Security Checks	high
260033	Linux Distros Unpatched Vulnerability : CVE-2025-24305	Nessus	Misc.	high

Detections

Analytics

CVE-2025-24305

high

Tenable Plugins

high

high

high