usn-8666-2
Vulnerability from osv_ubuntu
Published
2026-08-25 21:15
Modified
2026-08-25 21:15
Summary
linux-azure-5.4, linux-azure-fips vulnerabilities
Details

Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this issue to inject packets. (CVE-2025-27558)

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: - x86 architecture; - Cryptographic API; - InfiniBand drivers; - Media drivers; - NVIDIA Tegra memory controller driver; - Network drivers; - NVME drivers; - File systems infrastructure; - Ext4 file system; - IPv4 networking; - Network traffic control; - TCP network protocol; - Locking primitives; - B.A.T.M.A.N. meshing protocol; - Ceph Core library; - IPv6 networking; - Multipath TCP; - Netfilter; - SCTP protocol; - SMC sockets; - TIPC protocol; (CVE-2021-47378, CVE-2026-23392, CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31657, CVE-2026-31668, CVE-2026-43071, CVE-2026-43198, CVE-2026-43493, CVE-2026-43499, CVE-2026-46266, CVE-2026-46331, CVE-2026-52914, CVE-2026-52924, CVE-2026-52931, CVE-2026-52955, CVE-2026-52958, CVE-2026-52982, CVE-2026-52986, CVE-2026-52989, CVE-2026-52993, CVE-2026-52999, CVE-2026-53002, CVE-2026-53006, CVE-2026-53045, CVE-2026-53088, CVE-2026-53176, CVE-2026-53212, CVE-2026-53228, CVE-2026-53359)

References
https://ubuntu.com/security/notices/USN-8666-2 ADVISORY
https://ubuntu.com/security/CVE-2021-47378 REPORT
https://ubuntu.com/security/CVE-2025-27558 REPORT
https://ubuntu.com/security/CVE-2026-23392 REPORT
https://ubuntu.com/security/CVE-2026-31405 REPORT
https://ubuntu.com/security/CVE-2026-31414 REPORT
https://ubuntu.com/security/CVE-2026-31448 REPORT
https://ubuntu.com/security/CVE-2026-31657 REPORT
https://ubuntu.com/security/CVE-2026-31668 REPORT
https://ubuntu.com/security/CVE-2026-43071 REPORT
https://ubuntu.com/security/CVE-2026-43198 REPORT
https://ubuntu.com/security/CVE-2026-43493 REPORT
https://ubuntu.com/security/CVE-2026-43499 REPORT
https://ubuntu.com/security/CVE-2026-46266 REPORT
https://ubuntu.com/security/CVE-2026-46331 REPORT
https://ubuntu.com/security/CVE-2026-52914 REPORT
https://ubuntu.com/security/CVE-2026-52924 REPORT
https://ubuntu.com/security/CVE-2026-52931 REPORT
https://ubuntu.com/security/CVE-2026-52955 REPORT
https://ubuntu.com/security/CVE-2026-52958 REPORT
https://ubuntu.com/security/CVE-2026-52982 REPORT
https://ubuntu.com/security/CVE-2026-52986 REPORT
https://ubuntu.com/security/CVE-2026-52989 REPORT
https://ubuntu.com/security/CVE-2026-52993 REPORT
https://ubuntu.com/security/CVE-2026-52999 REPORT
https://ubuntu.com/security/CVE-2026-53002 REPORT
https://ubuntu.com/security/CVE-2026-53006 REPORT
https://ubuntu.com/security/CVE-2026-53045 REPORT
https://ubuntu.com/security/CVE-2026-53088 REPORT
https://ubuntu.com/security/CVE-2026-53176 REPORT
https://ubuntu.com/security/CVE-2026-53212 REPORT
https://ubuntu.com/security/CVE-2026-53228 REPORT
https://ubuntu.com/security/CVE-2026-53359 REPORT
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-47378",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-27558",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-23392",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-31405",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-31414",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-31448",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-31657",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-31668",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43071",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43198",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43493",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-43499",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-46266",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-46331",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52914",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52924",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52931",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52955",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "critical",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52958",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52982",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52986",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52989",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "critical",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52993",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "critical",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-52999",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53002",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "critical",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53006",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53045",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53088",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53176",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53212",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53228",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53359",
              "severity": [
                {
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              "id": "CVE-2026-31414",
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            {
              "id": "CVE-2026-31448",
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                  "type": "CVSS_V3"
                },
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              "id": "CVE-2026-31657",
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                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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            {
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                  "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N",
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                  "type": "CVSS_V4"
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                  "score": "critical",
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            {
              "id": "CVE-2026-52958",
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                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
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            {
              "id": "CVE-2026-52982",
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                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
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                {
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              "id": "CVE-2026-52986",
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                  "type": "CVSS_V4"
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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                {
                  "score": "medium",
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            {
              "id": "CVE-2026-52989",
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                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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                {
                  "score": "critical",
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            {
              "id": "CVE-2026-52993",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
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                  "type": "CVSS_V3"
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                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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                {
                  "score": "critical",
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            {
              "id": "CVE-2026-52999",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53002",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "critical",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53006",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53045",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53088",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53176",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53212",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53228",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-53359",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "linux-azure-fips-cloud-tools-5.4.0-1167",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-azure-fips-headers-5.4.0-1167",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-azure-fips-tools-5.4.0-1167",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-buildinfo-5.4.0-1167-azure-fips",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-cloud-tools-5.4.0-1167-azure-fips",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-headers-5.4.0-1167-azure-fips",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1167-azure-fips",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-image-unsigned-hmac-5.4.0-1167-azure-fips",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-modules-5.4.0-1167-azure-fips",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-modules-extra-5.4.0-1167-azure-fips",
            "binary_version": "5.4.0-1167.173+fips1"
          },
          {
            "binary_name": "linux-tools-5.4.0-1167-azure-fips",
            "binary_version": "5.4.0-1167.173+fips1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS",
        "name": "linux-azure-fips",
        "purl": "pkg:deb/ubuntu/linux-azure-fips@5.4.0-1167.173+fips1?arch=source\u0026distro=fips-updates/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1167.173+fips1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-1022.22+fips1",
        "5.4.0-1073.76+fips1",
        "5.4.0-1074.77+fips1",
        "5.4.0-1076.79+fips1",
        "5.4.0-1078.81+fips1",
        "5.4.0-1080.83+fips1",
        "5.4.0-1083.87+fips1",
        "5.4.0-1085.90+fips1",
        "5.4.0-1086.91+fips1",
        "5.4.0-1089.94+fips1",
        "5.4.0-1090.95+fips1",
        "5.4.0-1091.96+fips1",
        "5.4.0-1094.100+fips1",
        "5.4.0-1095.101+fips1",
        "5.4.0-1098.104+fips1",
        "5.4.0-1100.106+fips1",
        "5.4.0-1101.107+fips1",
        "5.4.0-1103.109+fips1",
        "5.4.0-1104.110+fips1",
        "5.4.0-1105.111+fips1",
        "5.4.0-1106.112+fips1",
        "5.4.0-1107.113+fips1",
        "5.4.0-1108.114+fips1",
        "5.4.0-1109.115+fips1",
        "5.4.0-1110.116+fips1",
        "5.4.0-1111.117+fips1",
        "5.4.0-1112.118+fips1",
        "5.4.0-1113.119+fips1",
        "5.4.0-1114.120+fips1",
        "5.4.0-1115.122+fips1",
        "5.4.0-1116.123+fips1",
        "5.4.0-1117.124+fips1",
        "5.4.0-1118.125+fips1",
        "5.4.0-1119.126+fips1",
        "5.4.0-1121.128+fips1",
        "5.4.0-1122.129+fips1",
        "5.4.0-1123.130+fips1",
        "5.4.0-1124.131+fips1",
        "5.4.0-1126.133+fips1",
        "5.4.0-1127.134+fips1",
        "5.4.0-1128.135+fips1",
        "5.4.0-1129.136+fips1",
        "5.4.0-1130.137+fips1",
        "5.4.0-1131.138+fips1",
        "5.4.0-1132.139+fips1",
        "5.4.0-1133.140+fips1",
        "5.4.0-1134.141+fips1",
        "5.4.0-1135.142+fips1",
        "5.4.0-1136.143+fips1",
        "5.4.0-1137.144+fips1",
        "5.4.0-1138.145+fips1",
        "5.4.0-1139.146+fips1",
        "5.4.0-1140.147+fips1",
        "5.4.0-1142.149+fips1",
        "5.4.0-1143.150+fips1",
        "5.4.0-1145.152+fips1",
        "5.4.0-1147.154+fips1",
        "5.4.0-1148.156+fips1",
        "5.4.0-1149.157+fips1",
        "5.4.0-1151.158+fips1",
        "5.4.0-1152.159+fips1",
        "5.4.0-1153.160+fips1",
        "5.4.0-1154.161+fips1",
        "5.4.0-1155.162+fips1",
        "5.4.0-1157.164+fips1",
        "5.4.0-1158.165+fips1",
        "5.4.0-1160.166+fips1",
        "5.4.0-1161.167+fips1",
        "5.4.0-1162.168+fips1",
        "5.4.0-1163.169+fips1",
        "5.4.0-1164.170+fips1",
        "5.4.0-1166.172+fips1"
      ]
    }
  ],
  "aliases": [],
  "details": "Siebe Devroe, H\u00e9lo\u00efse Gollier, and Mathy Vanhoef discovered that the WiFi\nimplementation in the Linux kernel did not properly handle aggregated\nframes in mesh networks, due to an incorrect fix for CVE-2020-24588. A\nphysically proximate attacker could use this issue to inject packets.\n(CVE-2025-27558)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - x86 architecture;\n  - Cryptographic API;\n  - InfiniBand drivers;\n  - Media drivers;\n  - NVIDIA Tegra memory controller driver;\n  - Network drivers;\n  - NVME drivers;\n  - File systems infrastructure;\n  - Ext4 file system;\n  - IPv4 networking;\n  - Network traffic control;\n  - TCP network protocol;\n  - Locking primitives;\n  - B.A.T.M.A.N. meshing protocol;\n  - Ceph Core library;\n  - IPv6 networking;\n  - Multipath TCP;\n  - Netfilter;\n  - SCTP protocol;\n  - SMC sockets;\n  - TIPC protocol;\n(CVE-2021-47378, CVE-2026-23392, CVE-2026-31405, CVE-2026-31414,\nCVE-2026-31448, CVE-2026-31657, CVE-2026-31668, CVE-2026-43071,\nCVE-2026-43198, CVE-2026-43493, CVE-2026-43499, CVE-2026-46266,\nCVE-2026-46331, CVE-2026-52914, CVE-2026-52924, CVE-2026-52931,\nCVE-2026-52955, CVE-2026-52958, CVE-2026-52982, CVE-2026-52986,\nCVE-2026-52989, CVE-2026-52993, CVE-2026-52999, CVE-2026-53002,\nCVE-2026-53006, CVE-2026-53045, CVE-2026-53088, CVE-2026-53176,\nCVE-2026-53212, CVE-2026-53228, CVE-2026-53359)\n",
  "id": "USN-8666-2",
  "modified": "2026-08-25T21:15:06Z",
  "published": "2026-08-25T21:15:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8666-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-47378"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-27558"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-23392"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-31405"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-31414"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-31448"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-31657"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-31668"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43071"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43198"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43493"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-43499"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46266"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-46331"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52914"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52924"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52931"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52955"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52958"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52982"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52986"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52989"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52993"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-52999"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53002"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53006"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53045"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53088"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53176"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53212"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53228"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-53359"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-azure-5.4, linux-azure-fips vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-47378",
    "UBUNTU-CVE-2025-27558",
    "UBUNTU-CVE-2026-23392",
    "UBUNTU-CVE-2026-31405",
    "UBUNTU-CVE-2026-31414",
    "UBUNTU-CVE-2026-31448",
    "UBUNTU-CVE-2026-31657",
    "UBUNTU-CVE-2026-31668",
    "UBUNTU-CVE-2026-43071",
    "UBUNTU-CVE-2026-43198",
    "UBUNTU-CVE-2026-43493",
    "UBUNTU-CVE-2026-43499",
    "UBUNTU-CVE-2026-46266",
    "UBUNTU-CVE-2026-46331",
    "UBUNTU-CVE-2026-52914",
    "UBUNTU-CVE-2026-52924",
    "UBUNTU-CVE-2026-52931",
    "UBUNTU-CVE-2026-52955",
    "UBUNTU-CVE-2026-52958",
    "UBUNTU-CVE-2026-52982",
    "UBUNTU-CVE-2026-52986",
    "UBUNTU-CVE-2026-52989",
    "UBUNTU-CVE-2026-52993",
    "UBUNTU-CVE-2026-52999",
    "UBUNTU-CVE-2026-53002",
    "UBUNTU-CVE-2026-53006",
    "UBUNTU-CVE-2026-53045",
    "UBUNTU-CVE-2026-53088",
    "UBUNTU-CVE-2026-53176",
    "UBUNTU-CVE-2026-53212",
    "UBUNTU-CVE-2026-53228",
    "UBUNTU-CVE-2026-53359"
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.