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

  - Improper access control in some 3rd Generation Intel(R) Xeon(R) Scalable processors may allow a privileged     user to potentially enable information disclosure via local access. (CVE-2023-23908)

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

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6286-1 advisory.

    Daniel Moghimi discovered that some Intel(R) Processors did not properly clear microarchitectural state     after speculative execution of various instructions. A local unprivileged user could use this to obtain to     sensitive information. (CVE-2022-40982)

    It was discovered that some Intel(R) Xeon(R) Processors did not properly restrict error injection for     Intel(R) SGX or Intel(R) TDX. A local privileged user could use this to further escalate their privileges.
    (CVE-2022-41804)

    It was discovered that some 3rd Generation Intel(R) Xeon(R) Scalable processors did not properly restrict     access in some situations. A local privileged attacker could use this to obtain sensitive information.
    (CVE-2023-23908)

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 Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-10d34be85a advisory.

    - Update to upstream release 20230808
      - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000171 up to 0x1000181;
      - Update of 06-55-04/0xb7 (SKX-D/SP/W/X H0/M0/M1/U0) microcode from revision 0x2006f05 up to 0x2007006;
      - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x4003501 up to 0x4003604;
      - Update of 06-55-07/0xbf (CLX-SP/W/X B1/L1) microcode from revision 0x5003501 up to 0x5003604;
      - Update of 06-55-0b/0xbf (CPX-SP A1) microcode from revision 0x7002601 up to 0x7002703;
      - Update of 06-6a-06/0x87 (ICX-SP D0) microcode from revision 0xd000390 up to 0xd0003a5;
      - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0xba up to 0xbc;
      - Update of 06-8c-01/0x80 (TGL-UP3/UP4 B1) microcode from revision 0xaa up to 0xac;
      - Update of 06-8c-02/0xc2 (TGL-R C0) microcode from revision 0x2a up to 0x2c;
      - Update of 06-8d-01/0xc2 (TGL-H R0) microcode from revision 0x44 up to 0x46;
      - Update of 06-8e-09/0xc0 (KBL-U/U 2+3e/Y H0/J1) microcode from revision 0xf2 up to 0xf4;
      - Update of 06-8e-09/0x10 (AML-Y 2+2 H0) microcode from revision 0xf2 up to 0xf4;
      - Update of 06-8e-0a/0xc0 (CFL-U 4+3e D0, KBL-R Y0) microcode from revision 0xf2 up to 0xf4;
      - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xf2 up to 0xf4;
      - Update of 06-8e-0c/0x94 (AML-Y 4+2 V0, CML-U 4+2 V0, WHL-U V0) microcode from revision 0xf6 up to     0xf8;
      - Update of 06-8f-04/0x10 microcode from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-04/0x87 (SPR-SP E0/S1) microcode from revision 0x2b000461 up to 0x2b0004b1;
      - Update of 06-8f-05/0x10 (SPR-HBM B1) microcode (in intel-ucode/06-8f-04) from revision 0x2c0001d1 up     to 0x2c000271;
      - Update of 06-8f-05/0x87 (SPR-SP E2) microcode (in intel-ucode/06-8f-04) from revision 0x2b000461 up to     0x2b0004b1;
      - Update of 06-8f-06/0x10 microcode (in intel-ucode/06-8f-04) from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-06/0x87 (SPR-SP E3) microcode (in intel-ucode/06-8f-04) from revision 0x2b000461 up to     0x2b0004b1;
      - Update of 06-8f-07/0x87 (SPR-SP E4/S2) microcode (in intel-ucode/06-8f-04) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-08/0x10 (SPR-HBM B3) microcode (in intel-ucode/06-8f-04) from revision 0x2c0001d1 up     to 0x2c000271;
      - Update of 06-8f-08/0x87 (SPR-SP E5/S3) microcode (in intel-ucode/06-8f-04) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-04/0x10 microcode (in intel-ucode/06-8f-05) from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-04/0x87 (SPR-SP E0/S1) microcode (in intel-ucode/06-8f-05) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-05/0x10 (SPR-HBM B1) microcode from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-05/0x87 (SPR-SP E2) microcode from revision 0x2b000461 up to 0x2b0004b1;
      - Update of 06-8f-06/0x10 microcode (in intel-ucode/06-8f-05) from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-06/0x87 (SPR-SP E3) microcode (in intel-ucode/06-8f-05) from revision 0x2b000461 up to     0x2b0004b1;
      - Update of 06-8f-07/0x87 (SPR-SP E4/S2) microcode (in intel-ucode/06-8f-05) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-08/0x10 (SPR-HBM B3) microcode (in intel-ucode/06-8f-05) from revision 0x2c0001d1 up     to 0x2c000271;
      - Update of 06-8f-08/0x87 (SPR-SP E5/S3) microcode (in intel-ucode/06-8f-05) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-04/0x10 microcode (in intel-ucode/06-8f-06) from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-04/0x87 (SPR-SP E0/S1) microcode (in intel-ucode/06-8f-06) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-05/0x10 (SPR-HBM B1) microcode (in intel-ucode/06-8f-06) from revision 0x2c0001d1 up     to 0x2c000271;
      - Update of 06-8f-05/0x87 (SPR-SP E2) microcode (in intel-ucode/06-8f-06) from revision 0x2b000461 up to     0x2b0004b1;
      - Update of 06-8f-06/0x10 microcode from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-06/0x87 (SPR-SP E3) microcode from revision 0x2b000461 up to 0x2b0004b1;
      - Update of 06-8f-07/0x87 (SPR-SP E4/S2) microcode (in intel-ucode/06-8f-06) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-08/0x10 (SPR-HBM B3) microcode (in intel-ucode/06-8f-06) from revision 0x2c0001d1 up     to 0x2c000271;
      - Update of 06-8f-08/0x87 (SPR-SP E5/S3) microcode (in intel-ucode/06-8f-06) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-04/0x87 (SPR-SP E0/S1) microcode (in intel-ucode/06-8f-07) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-05/0x87 (SPR-SP E2) microcode (in intel-ucode/06-8f-07) from revision 0x2b000461 up to     0x2b0004b1;
      - Update of 06-8f-06/0x87 (SPR-SP E3) microcode (in intel-ucode/06-8f-07) from revision 0x2b000461 up to     0x2b0004b1;
      - Update of 06-8f-07/0x87 (SPR-SP E4/S2) microcode from revision 0x2b000461 up to 0x2b0004b1;
      - Update of 06-8f-08/0x87 (SPR-SP E5/S3) microcode (in intel-ucode/06-8f-07) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-04/0x10 microcode (in intel-ucode/06-8f-08) from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-04/0x87 (SPR-SP E0/S1) microcode (in intel-ucode/06-8f-08) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-05/0x10 (SPR-HBM B1) microcode (in intel-ucode/06-8f-08) from revision 0x2c0001d1 up     to 0x2c000271;
      - Update of 06-8f-05/0x87 (SPR-SP E2) microcode (in intel-ucode/06-8f-08) from revision 0x2b000461 up to     0x2b0004b1;
      - Update of 06-8f-06/0x10 microcode (in intel-ucode/06-8f-08) from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-06/0x87 (SPR-SP E3) microcode (in intel-ucode/06-8f-08) from revision 0x2b000461 up to     0x2b0004b1;
      - Update of 06-8f-07/0x87 (SPR-SP E4/S2) microcode (in intel-ucode/06-8f-08) from revision 0x2b000461 up     to 0x2b0004b1;
      - Update of 06-8f-08/0x10 (SPR-HBM B3) microcode from revision 0x2c0001d1 up to 0x2c000271;
      - Update of 06-8f-08/0x87 (SPR-SP E5/S3) microcode from revision 0x2b000461 up to 0x2b0004b1;
      - Update of 06-97-02/0x07 (ADL-HX/S 8+8 C0) microcode from revision 0x2c up to 0x2e;
      - Update of 06-97-05/0x07 (ADL-S 6+0 K0) microcode (in intel-ucode/06-97-02) from revision 0x2c up to     0x2e;
      - Update of 06-bf-02/0x07 (ADL C0) microcode (in intel-ucode/06-97-02) from revision 0x2c up to 0x2e;
      - Update of 06-bf-05/0x07 (ADL C0) microcode (in intel-ucode/06-97-02) from revision 0x2c up to 0x2e;
      - Update of 06-97-02/0x07 (ADL-HX/S 8+8 C0) microcode (in intel-ucode/06-97-05) from revision 0x2c up to     0x2e;
      - Update of 06-97-05/0x07 (ADL-S 6+0 K0) microcode from revision 0x2c up to 0x2e;
      - Update of 06-bf-02/0x07 (ADL C0) microcode (in intel-ucode/06-97-05) from revision 0x2c up to 0x2e;
      - Update of 06-bf-05/0x07 (ADL C0) microcode (in intel-ucode/06-97-05) from revision 0x2c up to 0x2e;
      - Update of 06-9a-03/0x80 (ADL-P 6+8/U 9W L0/R0) microcode from revision 0x42a up to 0x42c;
      - Update of 06-9a-04/0x80 (ADL-P 2+8 R0) microcode (in intel-ucode/06-9a-03) from revision 0x42a up to     0x42c;
      - Update of 06-9a-03/0x80 (ADL-P 6+8/U 9W L0/R0) microcode (in intel-ucode/06-9a-04) from revision 0x42a     up to 0x42c;
      - Update of 06-9a-04/0x80 (ADL-P 2+8 R0) microcode from revision 0x42a up to 0x42c;
      - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from revision 0xf2 up to 0xf4;
      - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E U0) microcode from revision 0xf2 up to 0xf4;
      - Update of 06-9e-0b/0x02 (CFL-E/H/S B0) microcode from revision 0xf2 up to 0xf4;
      - Update of 06-9e-0c/0x22 (CFL-H/S/Xeon E P0) microcode from revision 0xf2 up to 0xf4;
      - Update of 06-9e-0d/0x22 (CFL-H/S/Xeon E R0) microcode from revision 0xf8 up to 0xfa;
      - Update of 06-a5-02/0x20 (CML-H R1) microcode from revision 0xf6 up to 0xf8;
      - Update of 06-a5-03/0x22 (CML-S 6+2 G1) microcode from revision 0xf6 up to 0xf8;
      - Update of 06-a5-05/0x22 (CML-S 10+2 Q0) microcode from revision 0xf6 up to 0xf8;
      - Update of 06-a6-00/0x80 (CML-U 6+2 A0) microcode from revision 0xf6 up to 0xf8;
      - Update of 06-a6-01/0x80 (CML-U 6+2 v2 K1) microcode from revision 0xf6 up to 0xf8;
      - Update of 06-a7-01/0x02 (RKL-S B0) microcode from revision 0x58 up to 0x59;
      - Update of 06-b7-01/0x32 (RPL-S B0) microcode from revision 0x113 up to 0x119;
      - Update of 06-97-02/0x07 (ADL-HX/S 8+8 C0) microcode (in intel-ucode/06-bf-02) from revision 0x2c up to     0x2e;
      - Update of 06-97-05/0x07 (ADL-S 6+0 K0) microcode (in intel-ucode/06-bf-02) from revision 0x2c up to     0x2e;
      - Update of 06-bf-02/0x07 (ADL C0) microcode from revision 0x2c up to 0x2e;
      - Update of 06-bf-05/0x07 (ADL C0) microcode (in intel-ucode/06-bf-02) from revision 0x2c up to 0x2e;
      - Update of 06-97-02/0x07 (ADL-HX/S 8+8 C0) microcode (in intel-ucode/06-bf-05) from revision 0x2c up to     0x2e;
      - Update of 06-97-05/0x07 (ADL-S 6+0 K0) microcode (in intel-ucode/06-bf-05) from revision 0x2c up to     0x2e;
      - Update of 06-bf-02/0x07 (ADL C0) microcode (in intel-ucode/06-bf-05) from revision 0x2c up to 0x2e;
      - Update of 06-bf-05/0x07 (ADL C0) microcode from revision 0x2c up to 0x2e;
      - Update of 06-ba-02/0xe0 (RPL-H 6+8/P 6+8 J0) microcode from revision 0x4112 up to 0x4119 (old pf     0xc0);
      - Update of 06-ba-03/0xe0 (RPL-U 2+8 Q0) microcode (in intel-ucode/06-ba-02) from revision 0x4112 up to     0x4119 (old pf 0xc0);
      - Update of 06-ba-02/0xe0 (RPL-H 6+8/P 6+8 J0) microcode (in intel-ucode/06-ba-03) from revision 0x4112     up to 0x4119 (old pf 0xc0);
      - Update of 06-ba-03/0xe0 (RPL-U 2+8 Q0) microcode from revision 0x4112 up to 0x4119 (old pf 0xc0);
      - Update of 06-be-00/0x11 (ADL-N A0) microcode from revision 0x10 up to 0x11 (old pf 0x1).
    - Addresses CVE-2022-21216, CVE-2022-40982, CVE-2022-41804, CVE-2023-23908

Tenable has extracted the preceding description block directly from the Fedora 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-2023:3359-1 advisory.

    - Updated to Intel CPU Microcode 20230808 release. (bsc#1214099)
    - CVE-2022-40982: Fixed a potential security vulnerability in some Intel? Processors which may allow     information disclosure.
    - CVE-2023-23908: Fixed a potential security vulnerability in some 3rd Generation Intel? Xeon? Scalable     processors which may allow information disclosure.
    - CVE-2022-41804: Fixed a potential security vulnerability in some Intel? Xeon? Processors with Intel?     Software Guard Extensions (SGX) which may allow escalation of privilege.

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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3383-1 advisory.

    - Updated to Intel CPU Microcode 20230808 release. (bsc#1214099)
    - CVE-2022-40982: Fixed a potential security vulnerability in some Intel? Processors which may allow     information disclosure.
    - CVE-2023-23908: Fixed a potential security vulnerability in some 3rd Generation Intel? Xeon? Scalable     processors which may allow information disclosure.
    - CVE-2022-41804: Fixed a potential security vulnerability in some Intel? Xeon? Processors with Intel?     Software Guard Extensions (SGX) which may allow escalation of privilege.

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-2023:3382-1 advisory.

    - Updated to Intel CPU Microcode 20230808 release. (bsc#1214099)
    - CVE-2022-40982: Fixed a potential security vulnerability in some Intel? Processors which may allow     information disclosure.
    - CVE-2023-23908: Fixed a potential security vulnerability in some 3rd Generation Intel? Xeon? Scalable     processors which may allow information disclosure.
    - CVE-2022-41804: Fixed a potential security vulnerability in some Intel? Xeon? Processors with Intel?     Software Guard Extensions (SGX) which may allow escalation of privilege.

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 CentOS Linux 7.9 host has a package installed that is affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0719 advisory.

    This advisory aggregates security fixes for the microcode_ctl SRPM in CIQ CentOS Bridge 7.9. It addresses     7 CVEs: CVE-2022-21216, CVE-2022-33972, CVE-2022-33196, CVE-2022-38090, CVE-2022-40982, and 2 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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-436 advisory.

    2024-03-27: CVE-2023-23908 was added to this advisory.

    An issue was found in redundant REX instruction prefix values affecting third generation Intel Xeon     Scalable (Icelake) processors. The issue may allow a local third-party actor using such     instructions to cause a denial of service (DOS) or achieve privilege escalation. CVE-2023-23583 only     affects Amazon Linux customers on EC2 metal platforms. Please refer to the AWS Security Bulletin for more     information on the affected instance families and the impacts on AWS services:
    (https://aws.amazon.com/security/security-bulletins/AWS-2023-013) (CVE-2023-23583)

    Improper access control in some 3rd Generation Intel(R) Xeon(R) Scalable processors may allow a privileged     user to potentially enable information disclosure via local access. (CVE-2023-23908)

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
226476	Linux Distros Unpatched Vulnerability : CVE-2023-23908	Nessus	Misc.	2025/3/5	2026/9/2	medium
179733	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 : Intel Microcode vulnerabilities (USN-6286-1)	Nessus	Ubuntu Local Security Checks	2023/8/14	2024/8/27	medium
179957	Fedora 37 : microcode_ctl (2023-10d34be85a)	Nessus	Fedora Local Security Checks	2023/8/18	2024/11/14	medium
179988	SUSE SLES15 Security Update : ucode-intel (SUSE-SU-2023:3359-1)	Nessus	SuSE Local Security Checks	2023/8/19	2026/6/26	medium
180140	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : ucode-intel (SUSE-SU-2023:3383-1)	Nessus	SuSE Local Security Checks	2023/8/24	2026/6/26	medium
180151	SUSE SLES12 Security Update : ucode-intel (SUSE-SU-2023:3382-1)	Nessus	SuSE Local Security Checks	2023/8/24	2026/6/26	medium
355593	CentOS Linux 7.9 [CIQ] Security Update: microcode_ctl Multiple Vulnerabilities (ciqsa-2026_0719)	Nessus	CentOS Local Security Checks	2026/10/1	2026/10/1	medium
356446	Rocky Linux 9.6 [CIQ] Security Update: microcode_ctl Multiple Vulnerabilities (ciqsa-2026_1569)	Nessus	Rocky Linux Local Security Checks	2026/10/1	2026/10/13	high
185722	Amazon Linux 2023 : microcode_ctl (ALAS2023-2023-436)	Nessus	Amazon Linux Local Security Checks	2023/11/15	2024/12/11	high

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