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Ubuntu Security Notices (USN)

Source: https://ubuntu.com/security/notices

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  • Critical max 9.8
    USN-7820-1 8 CVEs

    linux-oracle vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Ext4 file system; - Network file system (NFS) server daemon; - Packet sockets…

    first Oct 13, 2025
  • Critical max 9.8
    USN-7771-1 182 CVEs 1 exploited

    linux-oem-6.14 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - Block layer…

    first Sep 24, 2025
  • Critical max 9.8
    USN-7797-1 10 CVEs

    linux, linux-kvm vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Virtio block driver; - Media drivers; - Network drivers; - Framebuffer layer;…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7769-1 183 CVEs 1 exploited

    linux, linux-aws, linux-gcp, linux-gcp-6.14, linux-oracle, linux-realtime vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - Block layer…

    first Dec 3, 2025
  • Critical max 9.8
    USN-7801-2 107 CVEs

    linux-oracle vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - x86 architecture; - Compute Accel…

    first Oct 6, 2025
  • Critical max 9.8
    USN-7796-3 7 CVEs

    linux-azure vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Framebuffer layer; - BTRFS file system; - Ext4 file system; - Network file sy…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7712-2 170 CVEs

    linux-azure-5.15 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - PA-RISC architecture; - PowerPC architecture; - x86 architecture; - Block lay…

    first Sep 2, 2025
  • Critical max 9.8
    USN-7719-1 72 CVEs

    linux-raspi-realtime vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - Block layer…

    first Aug 26, 2025
  • Critical max 9.8
    USN-7712-1 170 CVEs

    linux-azure-fips vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - PA-RISC architecture; - PowerPC architecture; - x86 architecture; - Block lay…

    first Aug 22, 2025
  • Critical max 9.8
    USN-7711-1 160 CVEs

    linux-azure vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - PA-RISC architecture; - PowerPC architecture; - x86 architecture; - Block lay…

    first Aug 22, 2025
  • Critical max 9.8
    USN-7704-5 21 CVEs

    linux-gke, linux-kvm vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - Arm Firmware Framework for ARMv8-A(FFA); - Multiple devi…

    first Aug 28, 2025
  • Critical max 9.8
    USN-7704-4 21 CVEs

    linux-nvidia vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - Arm Firmware Framework for ARMv8-A(FFA); - Multiple devi…

    first Aug 21, 2025
  • Critical max 9.4
    USN-7699-2 59 CVEs

    linux-hwe-6.14, linux-oem-6.14 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - RISC-V architecture; - x86 architecture; - Buffer Shari…

    first Aug 20, 2025
  • Critical max 9.4
    USN-7699-1 59 CVEs

    linux, linux-aws, linux-aws-6.14, linux-gcp, linux-gcp-6.14, linux-oracle, linux-oracle-6.14, linux-raspi, linux-realtime vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - RISC-V architecture; - x86 architecture; - Buffer Shari…

    first Aug 18, 2025
  • Critical max 9.8
    USN-7704-3 21 CVEs

    linux-ibm, linux-intel-iotg, linux-oracle, linux-raspi vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - Arm Firmware Framework for ARMv8-A(FFA); - Multiple devi…

    first Aug 20, 2025
  • Critical max 9.8
    USN-7704-2 21 CVEs

    linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - Arm Firmware Framework for ARMv8-A(FFA); - Multiple devi…

    first Aug 19, 2025
  • Critical max 9.8
    USN-7774-3 142 CVEs 1 exploited

    linux-intel-iot-realtime, linux-realtime vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI driver…

    first Sep 25, 2025
  • Critical max 9.8
    USN-7776-1 146 CVEs 1 exploited

    linux-oracle-5.15 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI driver…

    first Sep 25, 2025
  • Critical max 9.8
    USN-7686-1 151 CVEs

    linux-raspi vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - PA-RISC architecture; - PowerPC architecture; - x86 architecture; - Block lay…

    first Aug 5, 2025
  • Critical max 9.8
    USN-7769-3 184 CVEs 1 exploited

    linux-aws-6.14, linux-hwe-6.14 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - Block layer…

    first Sep 26, 2025
  • Critical max 9.8
    USN-7671-3 11 CVEs

    linux-iot vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ACPI drivers; - GPU drivers; - SMB network file system; - Memory management; …

    first Aug 4, 2025
  • Critical max 9.8
    USN-7671-2 11 CVEs

    linux-azure, linux-azure-5.4, linux-azure-fips, linux-raspi, linux-raspi-5.4 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ACPI drivers; - GPU drivers; - SMB network file system; - Memory management; …

    first Jul 29, 2025
  • Critical max 10.0
    USN-7628-1 183 CVEs

    linux-azure, linux-azure-6.11 vulnerabilities

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. (CVE-2025-2312) Several security issues were…

    first Jul 8, 2025
  • Critical max 9.8
    USN-7608-1 9 CVEs

    linux, linux-aws, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - GPU drivers; - SMB network file system; - Memory management; - Netfilter; - N…

    first Jul 1, 2025
  • Critical max 10.0
    USN-7605-1 177 CVEs

    linux, linux-aws, linux-gcp, linux-gcp-6.11, linux-hwe-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. (CVE-2025-2312) Several security issues were…

    first Jun 30, 2025
  • Critical max 10.0
    USN-7591-2 67 CVEs

    linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities

    Michael Randrianantenaina discovered that the Bluetooth driver in the Linux Kernel contained an improper access control vulnerability. A nearby attacker could use this to connect a rougue device and possibly execute arbitrary code. (CVE-2024-8805) It was disc…

    first Jun 24, 2025
  • Critical max 10.0
    USN-7591-1 67 CVEs

    linux, linux-gcp, linux-gke, linux-gkeop, linux-ibm, linux-kvm, linux-lowlatency, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-igx, linux-oracle vulnerabilities

    Michael Randrianantenaina discovered that the Bluetooth driver in the Linux Kernel contained an improper access control vulnerability. A nearby attacker could use this to connect a rougue device and possibly execute arbitrary code. (CVE-2024-8805) It was disc…

    first Jun 23, 2025
  • Critical max 9.8
    USN-6725-1 46 CVEs

    linux, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15, linux-raspi vulnerabilities

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate certain data structure fields when parsing lease contexts, leading to an out-of-bounds read vulnerability. A remote attacker could use this to cause a denial…

    first Apr 9, 2024
  • Critical max 10.0
    USN-7605-2 177 CVEs

    linux-lowlatency, linux-lowlatency-hwe-6.11 vulnerabilities

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. (CVE-2025-2312) Several security issues were…

    first Jul 4, 2025
  • Critical max 9.8
    USN-6725-2 46 CVEs

    linux-aws, linux-aws-5.15 vulnerabilities

    Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate certain data structure fields when parsing lease contexts, leading to an out-of-bounds read vulnerability. A remote attacker could use this to cause a denial…

    first Apr 16, 2024
  • Critical max 9.8
    USN-7653-1 158 CVEs

    linux-hwe-6.8 vulnerabilities

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. (CVE-2025-2312) Several security issues were…

    first Jul 17, 2025
  • Critical max 9.8
    USN-7609-1 7 CVEs

    linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oem-6.8, linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - InfiniBand drivers; - Netfilter; - Network traffic control; (CVE-2025-38001, …

    first Jul 1, 2025
  • Critical max 9.8
    USN-7665-2 52 CVEs

    linux-aws-6.14 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PA-RISC architecture; - PowerPC architecture; - S390 ar…

    first Jul 24, 2025
  • Critical max 9.8
    USN-7650-1 45 CVEs

    linux-oem-6.14 vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PA-RISC architecture; - PowerPC architecture; - S390 ar…

    first Jul 17, 2025
  • Critical max 9.8
    USN-7608-2 9 CVEs

    linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - GPU drivers; - SMB network file system; - Memory management; - Netfilter; - N…

    first Jul 1, 2025
  • Critical max 9.1
    USN-6464-1 11 CVEs

    linux, linux-aws, linux-aws-6.2, linux-azure, linux-azure-6.2, linux-azure-fde-6.2, linux-gcp, linux-gcp-6.2, linux-hwe-6.2, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-6.2, linux-oracle, linux-raspi, linux-starfive vulnerabilities

    Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-3…

    first Oct 31, 2023
  • Critical max 10.0
    USN-7597-1 66 CVEs

    linux-azure vulnerabilities

    Michael Randrianantenaina discovered that the Bluetooth driver in the Linux Kernel contained an improper access control vulnerability. A nearby attacker could use this to connect a rougue device and possibly execute arbitrary code. (CVE-2024-8805) Several sec…

    first Jun 24, 2025
  • Critical max 10.0
    USN-7591-5 67 CVEs

    linux-intel-iotg vulnerabilities

    Michael Randrianantenaina discovered that the Bluetooth driver in the Linux Kernel contained an improper access control vulnerability. A nearby attacker could use this to connect a rougue device and possibly execute arbitrary code. (CVE-2024-8805) It was disc…

    first Jul 4, 2025
  • Critical max 9.8
    USN-7608-6 9 CVEs

    linux-xilinx-zynqmp vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - GPU drivers; - SMB network file system; - Memory management; - Netfilter; - N…

    first Jul 11, 2025
  • Critical max 9.8
    USN-7608-7 9 CVEs

    linux-azure vulnerabilities

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - GPU drivers; - SMB network file system; - Memory management; - Netfilter; - N…

    first Jul 30, 2025