Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

The Rocky Linux 8.6 host has a package installed that is affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0107 advisory.

    This advisory aggregates security fixes for the microcode_ctl SRPM in CIQ LTS 8.6. It addresses 48 CVEs:
    CVE-2024-28047, CVE-2024-37020, CVE-2024-31157, CVE-2024-39279, CVE-2024-36293, and 43 more.

Tenable has extracted the preceding description block directly from the CIQ 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 Rocky Linux 9.6 host has a package installed that is affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_1569 advisory.

    This advisory aggregates security fixes for the microcode_ctl SRPM in CIQ LTS 9.6. It addresses 77 CVEs:
    CVE-2024-45332, CVE-2025-20623, CVE-2024-28047, CVE-2024-37020, CVE-2025-24495, and 72 more.

Tenable has extracted the preceding description block directly from the CIQ 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 Rocky Linux 9.2 host has a package installed that is affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0458 advisory.

    This advisory aggregates security fixes for the microcode_ctl SRPM in CIQ LTS 9.2. It addresses 52 CVEs:
    CVE-2024-28047, CVE-2024-37020, CVE-2024-31157, CVE-2024-39279, CVE-2024-36293, and 47 more.

Tenable has extracted the preceding description block directly from the CIQ 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 version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2022:0212 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

      CVE-2021-0127:
      Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access.

      CVE-2021-0145:
      Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user     to potentially enable information disclosure via local access.

      CVE-2021-33120:
      Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access.

Tenable has extracted the preceding description block directly from the Tencent Linux 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.

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

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

The remote CentOS Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the microcode_ctl-20220809-1.el9 build changelog.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

  - Sensitive information accessible by physical probing of JTAG interface for some Intel(R) Processors with     SGX may allow an unprivileged user to potentially enable information disclosure via physical access.
    (CVE-2022-0005)

  - Improper access control for some Intel(R) Xeon(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2022-21131)

  - Improper input validation for some Intel(R) Xeon(R) Processors may allow a privileged user to potentially     enable denial of service via local access. (CVE-2022-21136)

  - Processor optimization removal or modification of security-critical code for some Intel(R) Processors may     allow an authenticated user to potentially enable information disclosure via local access.
    (CVE-2022-21151)

  - Improper isolation of shared resources in some Intel(R) Processors may allow a privileged user to     potentially enable information disclosure via local access. (CVE-2022-21233)

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

The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5535-1 advisory.

    Joseph Nuzman discovered that some Intel processors did not properly initialise shared resources. A local     attacker could use this to obtain sensitive information. (CVE-2021-0145)

    Mark Ermolov, Dmitry Sklyarov and Maxim Goryachy discovered that some Intel processors did not prevent     test and debug logic from being activated at runtime. A local attacker could use this to escalate     privileges. (CVE-2021-0146)

    It was discovered that some Intel processors did not implement sufficient control flow management. A local     attacker could use this to cause a denial of service (system crash). (CVE-2021-0127)

    It was discovered that some Intel processors did not completely perform cleanup actions on multi-core     shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123,     CVE-2022-21127)

    It was discovered that some Intel processors did not completely perform cleanup actions on     microarchitectural fill buffers. A local attacker could possibly use this to expose sensitive information.
    (CVE-2022-21125)

    Alysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that some Intel processors     improperly optimised security-critical code. A local attacker could possibly use this to expose sensitive     information. (CVE-2022-21151)

    It was discovered that some Intel processors did not properly perform cleanup during specific special     register write operations. A local attacker could possibly use this to expose sensitive information.
    (CVE-2022-21166)

    It was discovered that some Intel processors did not properly restrict access in some situations. A local     attacker could use this to obtain sensitive information. (CVE-2021-33117)

    Brandon Miller discovered that some Intel processors did not properly restrict access in some situations.
    A local attacker could use this to obtain sensitive information or a remote attacker could use this to     cause a denial of service (system crash). (CVE-2021-33120)

Tenable has extracted the preceding description block directly from the Ubuntu 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 remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5486-1 advisory.

    It was discovered that some Intel processors did not implement sufficient control flow management. A local     attacker could use this to cause a denial of service. (CVE-2021-0127)

    Joseph Nuzman discovered that some Intel processors did not properly initialise shared resources. A local     attacker could use this to obtain sensitive information. (CVE-2021-0145)

    Mark Ermolov, Dmitry Sklyarov and Maxim Goryachy discovered that some Intel processors did not prevent     test and debug logic from being activated at runtime. A local attacker could use this to escalate     privileges. (CVE-2021-0146)

    It was discovered that some Intel processors did not properly restrict access in some situations. A local     attacker could use this to obtain sensitive information. (CVE-2021-33117)

    Brandon Miller discovered that some Intel processors did not properly restrict access in some situations.
    A local attacker could use this to obtain sensitive information or a remote attacker could use this to     cause a denial of service. (CVE-2021-33120)

    It was discovered that some Intel processors did not completely perform cleanup actions on multi-core     shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123,     CVE-2022-21127)

    Alysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that some Intel processors     improperly optimised security-critical code. A local attacker could possibly use this to expose sensitive     information. (CVE-2022-21151)

    It was discovered that some Intel processors did not properly perform cleanup during specific special     register write operations. A local attacker could possibly use this to expose sensitive information.
    (CVE-2022-21166)

Tenable has extracted the preceding description block directly from the Ubuntu 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 remote SUSE Linux SUSE15 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2022:0574-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0576-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0574-1 advisory.

    Updated to Intel CPU Microcode 20220207 release.

    - CVE-2021-0146: Fixed a potential security vulnerability in some Intel Processors may allow escalation of     privilege (bsc#1192615)
    - CVE-2021-0127: Intel Processor Breakpoint Control Flow (bsc#1195779)
    - CVE-2021-0145: Fast store forward predictor - Cross Domain Training (bsc#1195780)
    - CVE-2021-33120: Out of bounds read for some Intel Atom processors (bsc#1195781)

    - Security updates for [INTEL-SA-00528](https://www.intel.com/content/www/us/en/security-     center/advisory/intel-sa-00528.html)
    - Security updates for [INTEL-SA-00532](https://www.intel.com/content/www/us/en/security-     center/advisory/intel-sa-00532.html)

Tenable has extracted the preceding description block directly from the SUSE 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 remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0575-1 advisory.

    Updated to Intel CPU Microcode 20220207 release.

    - CVE-2021-0146: Fixed a potential security vulnerability in some Intel Processors may allow escalation of     privilege (bsc#1192615)
    - CVE-2021-0127: Intel Processor Breakpoint Control Flow (bsc#1195779)
    - CVE-2021-0145: Fast store forward predictor - Cross Domain Training (bsc#1195780)
    - CVE-2021-33120: Out of bounds read for some Intel Atom processors (bsc#1195781)

    - Security updates for [INTEL-SA-00528](https://www.intel.com/content/www/us/en/security-     center/advisory/intel-sa-00528.html)
    - Security updates for [INTEL-SA-00532](https://www.intel.com/content/www/us/en/security-     center/advisory/intel-sa-00532.html)

Tenable has extracted the preceding description block directly from the SUSE 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 remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0541-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0502-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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

ID	Name	Product	Family	Type	Severity
357817	Rocky Linux 8.6 [CIQ] Security Update: microcode_ctl Multiple Vulnerabilities (ciqsa-2026_0107)	Nessus	Rocky Linux Local Security Checks	Local	high
356446	Rocky Linux 9.6 [CIQ] Security Update: microcode_ctl Multiple Vulnerabilities (ciqsa-2026_1569)	Nessus	Rocky Linux Local Security Checks	Local	high
356342	Rocky Linux 9.2 [CIQ] Security Update: microcode_ctl Multiple Vulnerabilities (ciqsa-2026_0458)	Nessus	Rocky Linux Local Security Checks	Local	high
238700	TencentOS Server 3: microcode_ctl (TSSA-2022:0212)	Nessus	Tencent Local Security Checks	Local	medium
223602	Linux Distros Unpatched Vulnerability : CVE-2021-0145	Nessus	Misc.	Local	medium
191417	CentOS 9 : microcode_ctl-20220809-1.el9	Nessus	CentOS Local Security Checks	Local	medium
163520	Ubuntu 16.04 ESM : Intel Microcode vulnerabilities (USN-5535-1)	Nessus	Ubuntu Local Security Checks	Local	medium
162404	Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : Intel Microcode vulnerabilities (USN-5486-1)	Nessus	Ubuntu Local Security Checks	Local	medium
158449	openSUSE 15 Security Update : ucode-intel (openSUSE-SU-2022:0574-1)	Nessus	SuSE Local Security Checks	Local	medium
158447	SUSE SLES12 Security Update : ucode-intel (SUSE-SU-2022:0576-1)	Nessus	SuSE Local Security Checks	Local	medium
158446	SUSE SLED15 / SLES15 Security Update : ucode-intel (SUSE-SU-2022:0574-1)	Nessus	SuSE Local Security Checks	Local	medium
158445	SUSE SLES12 Security Update : ucode-intel (SUSE-SU-2022:0575-1)	Nessus	SuSE Local Security Checks	Local	medium
158242	SUSE SLES15 Security Update : ucode-intel (SUSE-SU-2022:0541-1)	Nessus	SuSE Local Security Checks	Local	medium
158180	SUSE SLES15 Security Update : ucode-intel (SUSE-SU-2022:0502-1)	Nessus	SuSE Local Security Checks	Local	medium

Detections

Analytics

CVE-2021-0145

medium

Tenable Plugins

high

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medium

medium

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