The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8667-1 advisory.

    Siebe Devroe, Hlose 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;

    - Network file system (NFS) server daemon;

    - IPv4 networking;

    - Network traffic control;

    - TCP network protocol;

    - Tracing infrastructure;

    - Locking primitives;

    - B.A.T.M.A.N. meshing protocol;

    - Ceph Core library;

    - IPv6 networking;

    - Multipath TCP;

    - Netfilter;

    - RxRPC session sockets;

    - SCTP protocol;

    - SMC sockets;

    - TIPC protocol; (CVE-2021-47378, CVE-2026-23392, CVE-2026-31402, CVE-2026-31405, CVE-2026-31414,     CVE-2026-31448, CVE-2026-31657, CVE-2026-31668, CVE-2026-43037, CVE-2026-43071, CVE-2026-43198,     CVE-2026-43493, CVE-2026-43499, CVE-2026-45988, CVE-2026-46119, CVE-2026-46135, 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)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Ubuntu 20.04 LTS : Linux kernel (KVM) vulnerabilities (USN-8667-1)

critical Nessus Plugin ID 340043

Version 1.3

Version 1.2

Version 1.1

Version 1.3 Sep 23, 2026, 8:20 AM Exploit attributes ("Exploit framework core" set to "True") Plugin Feed: 202609230820
Version 1.2 Aug 27, 2026, 3:41 PM Exploit attributes ("Exploited by malware" set to "True") Plugin Feed: 202608271541
Version 1.1 Aug 26, 2026, 6:30 PM New Plugin Feed: 202608261830