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Ubuntu Security Notices (USN)

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

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  • Critical max 10.0
    USN-8576-1 756 CVEs

    linux-nvidia-tegra-5.15 vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 21, 2026
  • Critical max 9.8
    USN-8761-3 95 CVEs

    linux-azure-6.8 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; - PowerPC architecture; - Compute A…

    first Sep 21, 2026
  • Critical max 9.9
    USN-8816-3 101 CVEs

    linux-oracle-7.0 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; - S390 architecture; - x86 architecture; - DRBD Distribut…

    first Sep 30, 2026
  • Critical max 9.8
    USN-8729-6 97 CVEs

    linux-aws, linux-aws-6.8 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; - PowerPC architecture; - Compute A…

    first Sep 29, 2026
  • Critical max 10.0
    USN-8576-2 756 CVEs

    linux-nvidia-tegra, linux-nvidia-tegra-igx vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 23, 2026
  • Critical max 10.0
    USN-8781-1 527 CVEs 1 exploited

    linux-nvidia-tegra vulnerabilities

    It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (TLB) invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to me…

    first Sep 18, 2026
  • Critical max 9.8
    USN-8729-4 97 CVEs

    linux-lowlatency, linux-lowlatency-hwe-6.8 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; - PowerPC architecture; - Compute A…

    first Sep 22, 2026
  • Critical max 10.0
    USN-8620-4 762 CVEs

    linux-intel-iotg vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 31, 2026
  • Critical max 9.8
    USN-8802-1 98 CVEs

    linux-oracle, linux-oracle-6.8 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; - PowerPC architecture; - Compute A…

    first Sep 22, 2026
  • Critical max 9.8
    USN-8729-5 97 CVEs

    linux-aws-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: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute A…

    first Sep 25, 2026
  • Critical max 10.0
    USN-8620-2 762 CVEs

    linux-azure-fips vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 29, 2026
  • Critical max 9.8
    USN-8729-3 97 CVEs

    linux-gcp-6.8, linux-ibm, linux-xilinx 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; - PowerPC architecture; - Compute A…

    first Sep 21, 2026
  • Critical max 9.8
    USN-7894-1 30 CVEs

    edk2 vulnerabilities

    It was discovered that EDK II was susceptible to a predictable TCP Initial Sequence Number. An attacker could possibly use this issue to gain unauthorized access. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2023-45236, CVE-2023-45237…

    first Nov 26, 2025
  • Critical max 9.8
    USN-8729-2 97 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: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute A…

    first Sep 18, 2026
  • Critical max 9.8
    USN-8761-2 95 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: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute A…

    first Sep 18, 2026
  • Critical max 9.8
    USN-8761-1 95 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: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute A…

    first Sep 15, 2026
  • Critical max 9.8
    USN-7786-1 3 CVEs

    openssl, openssl1.0 vulnerabilities

    Stanislav Fort discovered that OpenSSL incorrectly handled memory when trying to decrypt CMS messages encrypted with password-based encryption. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2025-9230) S…

    first Sep 30, 2025
  • Critical max 9.8
    USN-6937-1 4 CVEs

    openssl vulnerabilities

    It was discovered that OpenSSL incorrectly handled TLSv1.3 sessions when certain non-default TLS server configurations were in use. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, leading to a denial of service. (CVE-202…

    first Jul 31, 2024
  • Critical max 9.8
    USN-8567-1 891 CVEs

    linux, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-realtime, linux-realtime-6.8 vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 20, 2026
  • Critical max 10.0
    USN-8597-1 560 CVEs

    linux-ibm-5.15 vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 23, 2026
  • Critical max 9.8
    USN-8566-1 444 CVEs

    linux, linux-gcp, linux-gke, linux-realtime vulnerabilities

    It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. …

    first Jul 20, 2026
  • Critical max 9.8
    USN-8569-1 698 CVEs 1 exploited

    linux-hwe-7.0 vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 20, 2026
  • Critical max 9.8
    USN-8488-1 236 CVEs

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

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) Several security issues were discovered i…

    first Jul 1, 2026
  • Critical max 9.8
    USN-8604-1 267 CVEs

    linux-azure-6.17 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: - Foo-over-UDP (FOU); - ARM64 architecture; - x86 architecture; - Block layer s…

    first Jul 24, 2026
  • Critical max 9.8
    USN-8568-1 443 CVEs

    linux-oem-7.0 vulnerabilities

    It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. …

    first Jul 20, 2026
  • Critical max 9.8
    USN-8489-1 165 CVEs 1 exploited

    linux-oem-7.0 vulnerabilities

    It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processin…

    first Jul 1, 2026
  • Critical max 9.8
    USN-8488-2 236 CVEs

    linux-raspi vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) Several security issues were discovered i…

    first Jul 2, 2026
  • Critical max 9.8
    USN-8440-1 393 CVEs 2 exploited

    linux-azure-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 issu…

    first Jun 16, 2026
  • Critical max 9.8
    USN-8507-1 236 CVEs

    linux-nvidia vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) Several security issues were discovered i…

    first Jul 6, 2026
  • Critical max 9.8
    USN-8546-1 62 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: - ARM64 architecture; - Block layer subsystem; - Cryptographic API; - DMA engin…

    first Jul 15, 2026
  • Critical max 9.8
    USN-8508-1 84 CVEs

    linux-nvidia-6.17 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; - S390 architecture; - Block layer subsystem; - Cryptogra…

    first Jul 6, 2026
  • Critical max 9.8
    USN-8490-2 61 CVEs

    linux-realtime, linux-realtime-6.17 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; - Block layer subsystem; - Cryptographic API; - DMA engin…

    first Jul 17, 2026
  • Critical max 9.8
    USN-8374-1 40 CVEs 2 exploited

    linux-aws-6.17, linux-gcp, linux-gcp-6.17 vulnerabilities

    It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) It w…

    first Jun 2, 2026
  • Critical max 9.8
    USN-8545-1 62 CVEs

    linux-hwe-6.17 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; - Block layer subsystem; - Cryptographic API; - DMA engin…

    first Jul 15, 2026
  • Critical max 9.8
    USN-8491-1 62 CVEs

    linux-oem-6.17 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; - x86 architecture; - Block layer subsystem; - Cryptograp…

    first Jul 1, 2026
  • Critical max 9.8
    USN-8490-1 61 CVEs

    linux, linux-aws, linux-aws-6.17, linux-gcp, linux-gcp-6.17, linux-oracle, linux-oracle-6.17 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; - Block layer subsystem; - Cryptographic API; - DMA engin…

    first Jul 17, 2026
  • Critical max 9.8
    USN-8499-1 516 CVEs 2 exploited

    linux-xilinx vulnerabilities

    It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) It w…

    first Jul 2, 2026
  • Critical max 9.8
    USN-8497-1 321 CVEs 1 exploited

    linux-lowlatency, linux-lowlatency-hwe-6.8 vulnerabilities

    It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processin…

    first Jul 2, 2026
  • Critical max 9.8
    USN-8393-1 218 CVEs 2 exploited

    linux-azure-fips vulnerabilities

    It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) It w…

    first Jun 4, 2026
  • Critical max 9.8
    USN-8817-1 20 CVEs

    linux, linux-azure, linux-azure-6.8, linux-azure-fde, linux-azure-fde-6.8, linux-azure-fips, linux-fips, linux-gcp, linux-gcp-6.8, linux-gcp-fips, linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8, linux-raspi, linux-raspi-realtime, linux-realtime, linux-realtime-6.8 vulnerabilities

    It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (TLB) invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to me…

    first Sep 24, 2026