Intel Processor Firmware May 2026 Security Update

Intel has informed HP of a potential security vulnerability identified in some Intel® Processors, which might allow information disclosure. Intel is releasing microcode updates to mitigate this potential vulnerability. Intel has released updates to mitigate the potential vulnerability. HP has...

2026.2 IPU - Intel® Processor Firmware Advisory

Summary: A potential security vulnerability in some Intel® Processors may allow information disclosure. Intel is releasing microcode updates to mitigate this potential vulnerability. Vulnerability Details: CVEID: CVE-2025-35979 Description: Exposure of sensitive information caused by shared...

USN-8265-1 linux-nvidia-tegra vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8265-1: Linux kernel (NVIDIA Tegra) vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

Ubuntu 24.04 LTS / 25.10 : Linux kernel vulnerabilities (USN-8245-1)

"The remote Ubuntu 24.04 LTS / 25.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8245-1 advisory. Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify...

Ubuntu 24.04 LTS : Linux kernel (Xilinx) vulnerabilities (USN-8261-1)

"The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8261-1 advisory. Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the...

Unity Linux 20.1070e Security Update: microcode_ctl (UTSA-2026-017785)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017785 advisory. Hardware allows activation of test or debug logic at runtime for some IntelR processors which may allow an unauthenticated user to potentially enable escalation of...

USN-8261-1 linux-xilinx vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8261-1: Linux kernel (Xilinx) vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8260-1 linux-azure-fips vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8260-1: Linux kernel (Azure FIPS) vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8257-1 linux-raspi vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8257-1: Linux kernel (Raspberry Pi) vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8245-1: Linux kernel vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

USN-8179-4: Linux kernel (GCP) vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: microcode_ctl (UTSA-2026-016524)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016524 advisory. Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution in the indirect branch predictors for some...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: microcode_ctl (UTSA-2026-016523)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016523 advisory. Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution for some IntelR Processors may allow an authenticated user to...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: microcode_ctl (UTSA-2026-015078)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-015078 advisory. Incorrect initialization of resource in the branch prediction unit for some IntelR Core Ultra Processors may allow an authenticated user to potentially enable...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: microcode_ctl (UTSA-2026-015054)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-015054 advisory. Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some IntelR Core processors 10th...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: microcode_ctl (UTSA-2026-015073)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-015073 advisory. Uncaught exception in the core management mechanism for some IntelR Processors may allow an authenticated user to potentially enable denial of service via local...