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318 matches found

Ubuntu
Ubuntu
added 2026/05/11 12:47 p.m.9 views

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...

9.8CVSS6AI score0.00092EPSS
Exploits0
Ubuntu
Ubuntu
added 2026/05/07 3:54 p.m.5 views

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...

9.8CVSS6.8AI score0.03752EPSS
Exploits7References1
OSV
OSV
added 2026/05/07 3:16 p.m.9 views

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...

9.8CVSS6.6AI score0.00765EPSS
Exploits1References142
Ubuntu
Ubuntu
added 2026/05/07 9:47 a.m.11 views

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...

9.8CVSS7.1AI score0.00765EPSS
Exploits1
Ubuntu
Ubuntu
added 2026/05/07 7:34 a.m.4 views

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...

9.8CVSS7.1AI score0.00092EPSS
Exploits0
Ubuntu
Ubuntu
added 2026/04/28 4:30 p.m.5 views

USN-8185-2: Linux kernel (Low Latency NVIDIA) 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...

9.8CVSS6.8AI score0.00092EPSS
Exploits0
Tenable Nessus
Tenable Nessus
added 2026/04/24 12:0 a.m.0 views

Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel (Oracle) vulnerabilities (USN-8203-1)

"The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8203-1 advisory. Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly...

9.8CVSS5.9AI score0.00092EPSS
Exploits0References178
Ubuntu
Ubuntu
added 2026/04/23 10:0 a.m.6 views

USN-8204-1: Linux kernel (Raspberry Pi Real-time) 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...

9.8CVSS7.2AI score0.00092EPSS
Exploits0
OSV
OSV
added 2026/04/23 10:0 a.m.1 views

USN-8204-1 linux-raspi-realtime 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...

9.8CVSS5.7AI score0.00092EPSS
Exploits0References176
OSV
OSV
added 2026/04/23 9:52 a.m.1 views

USN-8203-1 linux-oracle, linux-oracle-6.8 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...

9.8CVSS5.7AI score0.00092EPSS
Exploits0References178
Ubuntu
Ubuntu
added 2026/04/23 9:52 a.m.5 views

USN-8203-1: Linux kernel (Oracle) 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...

9.8CVSS7.2AI score0.00092EPSS
Exploits0
OSV
OSV
added 2026/04/23 9:41 a.m.1 views

USN-8179-3 linux-hwe-6.8, linux-ibm-6.8, 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...

9.8CVSS5.7AI score0.00092EPSS
Exploits0References175
Ubuntu
Ubuntu
added 2026/04/17 9:55 a.m.1 views

USN-8185-1: Linux kernel (NVIDIA) 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...

9.8CVSS5.9AI score0.00092EPSS
Exploits0
OSV
OSV
added 2026/04/17 9:55 a.m.2 views

USN-8185-1 linux-nvidia, linux-nvidia-6.8 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...

9.8CVSS6.7AI score0.00092EPSS
Exploits0References174
Ubuntu
Ubuntu
added 2026/04/17 9:6 a.m.5 views

USN-8183-1: 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...

7.8CVSS5.8AI score0.0009EPSS
Exploits0
Ubuntu
Ubuntu
added 2026/04/17 8:33 a.m.1 views

USN-8177-1: 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...

7.8CVSS5.8AI score0.0009EPSS
Exploits0
Ubuntu
Ubuntu
added 2026/04/16 2:13 p.m.1 views

USN-8179-1: 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...

9.8CVSS5.9AI score0.00092EPSS
Exploits0
Fedora
Fedora
added 2026/03/07 12:31 a.m.4 views

[SECURITY] Fedora 44 Update: microcode_ctl-2.1-74.fc44

The microcodectl utility is a companion to the microcode driver written by Tigran Aivazian . The microcode update is volatile and needs to be uploaded on each system boot i.e. it doesn't reflash your cpu permanently, reboot and it reverts back to the old microcode...

5.8AI score
Exploits0
Fedora
Fedora
added 2026/02/20 1:17 a.m.4 views

[SECURITY] Fedora 42 Update: microcode_ctl-2.1-70.1.fc42

The microcodectl utility is a companion to the microcode driver written by Tigran Aivazian . The microcode update is volatile and needs to be uploaded on each system boot i.e. it doesn't reflash your cpu permanently, reboot and it reverts back to the old microcode...

5.9AI score
Exploits0
OSV
OSV
added 2026/02/18 2:49 p.m.2 views

CLSA-2026-1771413627 Update of linux-firmware

Addition AMD CPU microcode for processor family 0x1a: cpuid:0x00B00F21ver:0x0B002161, cpuid:0x00B00F81ver:0x0B008121, cpuid:0x00B10F10ver:0x0B101058, cpuid:0x00B20F40ver:0x0B204037, cpuid:0x00B40F40ver:0x0B404035, cpuid:0x00B40F41ver:0x0B404108, cpuid:0x00B60F00ver:0x0B600037,...

5.8AI score
Exploits0References1
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