The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() opinfo pointer obtained via     rcu_dereference(fp->f_opinfo) is being accessed after rcu_read_unlock() has been called. This creates a     race condition where the memory could be freed by a concurrent writer between the unlock and the     subsequent pointer dereferences (opinfo->is_lease, etc.), leading to a use-after-free. (CVE-2026-43379)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8669-1 advisory.

    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 subsystem;

    - Drivers core;

    - Null block device driver;

    - Bluetooth drivers;

    - Counter interface drivers;

    - DMA engine subsystem;

    - DPLL subsystem;

    - GPIO subsystem;

    - GPU drivers;

    - I2C subsystem;

    - IIO ADC drivers;

    - IIO subsystem;

    - InfiniBand drivers;

    - On-Chip Interconnect management framework;

    - IOMMU subsystem;

    - IRQ chip drivers;

    - Modular ISDN driver;

    - LED subsystem;

    - Multiple devices driver;

    - Media drivers;

    - UACCE accelerator framework;

    - MMC subsystem;

    - Ethernet bonding driver;

    - Network drivers;

    - Mellanox network drivers;

    - Texas Instruments network drivers;

    - NVME drivers;

    - Device tree and open firmware driver;

    - PHY drivers;

    - x86 platform drivers;

    - i.MX PM domains;

    - SCSI subsystem;

    - SLIMbus drivers;

    - SPI subsystem;

    - TTY drivers;

    - USB Host Controller drivers;

    - W1 Dallas's 1-wire bus driver;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - EFI Variable file system;

    - File systems infrastructure;

    - Ext4 file system;

    - FUSE (File system in Userspace);

    - Network file systems library;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - SMB network file system;

    - Memory Management;

    - Memory management;

    - Scheduler infrastructure;

    - Tracing infrastructure;

    - IPv4 networking;

    - Netfilter;

    - NFC subsystem;

    - Network traffic control;

    - TCP network protocol;

    - io_uring subsystem;

    - Perf events;

    - Locking primitives;

    - Hibernation control;

    - Timer subsystem;

    - BPF subsystem;

    - Floating proportions library;

    - Bluetooth subsystem;

    - CAN network layer;

    - Ceph Core library;

    - Networking core;

    - IPv6 networking;

    - L2TP protocol;

    - MAC80211 subsystem;

    - Multipath TCP;

    - NET/ROM layer;

    - RxRPC session sockets;

    - SCTP protocol;

    - SMC sockets;

    - VMware vSockets driver;

    - Wireless networking;

    - ALSA AC97 driver;

    - Creative Sound Blaster X-Fi driver;

    - Texas InstrumentS Audio (ASoC/HDA) drivers;

    - USB sound devices; (CVE-2025-71158, CVE-2025-71160, CVE-2025-71161, CVE-2025-71162, CVE-2025-71163,     CVE-2025-71180, CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185, CVE-2025-71186,     CVE-2025-71187, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190, CVE-2025-71191, CVE-2025-71192,     CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198,     CVE-2025-71199, CVE-2025-71200, CVE-2025-71201, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978,     CVE-2026-22979, CVE-2026-22980, CVE-2026-22981, CVE-2026-22982, CVE-2026-22985, CVE-2026-22986,     CVE-2026-22987, CVE-2026-22989, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22993,     CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000,     CVE-2026-23001, CVE-2026-23002, CVE-2026-23003, CVE-2026-23004, CVE-2026-23005, CVE-2026-23006,     CVE-2026-23007, CVE-2026-23008, CVE-2026-23009, CVE-2026-23010, CVE-2026-23011, CVE-2026-23012,     CVE-2026-23013, CVE-2026-23014, CVE-2026-23015, CVE-2026-23017, CVE-2026-23018, CVE-2026-23019,     CVE-2026-23020, CVE-2026-23021, CVE-2026-23022, CVE-2026-23023, CVE-2026-23024, CVE-2026-23025,     CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23034,     CVE-2026-23035, CVE-2026-23036, CVE-2026-23037, CVE-2026-23038, CVE-2026-23042, CVE-2026-23044,     CVE-2026-23045, CVE-2026-23046, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23051,     CVE-2026-23052, CVE-2026-23053, CVE-2026-23054, CVE-2026-23055, CVE-2026-23056, CVE-2026-23057,     CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063, CVE-2026-23064,     CVE-2026-23065, CVE-2026-23066, CVE-2026-23067, CVE-2026-23068, CVE-2026-23069, CVE-2026-23070,     CVE-2026-23071, CVE-2026-23072, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23077,     CVE-2026-23078, CVE-2026-23079, CVE-2026-23080, CVE-2026-23081, CVE-2026-23083, CVE-2026-23084,     CVE-2026-23085, CVE-2026-23086, CVE-2026-23087, CVE-2026-23088, CVE-2026-23089, CVE-2026-23090,     CVE-2026-23092, CVE-2026-23093, CVE-2026-23094, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097,     CVE-2026-23098, CVE-2026-23099, CVE-2026-23100, CVE-2026-23101, CVE-2026-23102, CVE-2026-23103,     CVE-2026-23104, CVE-2026-23105, CVE-2026-23106, CVE-2026-23107, CVE-2026-23108, CVE-2026-23109,     CVE-2026-23110, CVE-2026-23113, CVE-2026-23114, CVE-2026-23115, CVE-2026-23116, CVE-2026-23118,     CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23122, CVE-2026-23123, CVE-2026-23124,     CVE-2026-23125, CVE-2026-23126, CVE-2026-23128, CVE-2026-23129, CVE-2026-23130, CVE-2026-23131,     CVE-2026-23133, CVE-2026-23135, CVE-2026-23136, CVE-2026-23137, CVE-2026-23138, CVE-2026-23139,     CVE-2026-23140, CVE-2026-23141, CVE-2026-23142, CVE-2026-23143, CVE-2026-23144, CVE-2026-23145,     CVE-2026-23146, CVE-2026-23147, CVE-2026-23148, CVE-2026-23150, CVE-2026-23151, CVE-2026-23152,     CVE-2026-23154, CVE-2026-23156, CVE-2026-23157, CVE-2026-23158, CVE-2026-23159, CVE-2026-23160,     CVE-2026-23161, CVE-2026-23162, CVE-2026-23163, CVE-2026-23164, CVE-2026-23165, CVE-2026-23166,     CVE-2026-23167, CVE-2026-23168, CVE-2026-23169, CVE-2026-23170, CVE-2026-23171, CVE-2026-23172,     CVE-2026-23173, CVE-2026-23212, CVE-2026-31405, CVE-2026-31414, CVE-2026-31444, CVE-2026-31501,     CVE-2026-31589, CVE-2026-31633, CVE-2026-31636, CVE-2026-31705, CVE-2026-43198, CVE-2026-43379,     CVE-2026-43465, CVE-2026-43499, CVE-2026-46113, CVE-2026-46137, CVE-2026-46242, CVE-2026-46290,     CVE-2026-46317, CVE-2026-46331, CVE-2026-52924, CVE-2026-52989, CVE-2026-53086, CVE-2026-53131,     CVE-2026-53176, CVE-2026-53212, CVE-2026-53225, CVE-2026-53228, CVE-2026-53277, 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.

ID	Name	Product	Family	Published	Updated	Severity
315668	Linux Distros Unpatched Vulnerability : CVE-2026-43379	Nessus	Misc.	5/20/2026	8/27/2026	critical
340678	Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8669-1)	Nessus	Ubuntu Local Security Checks	8/26/2026	8/27/2026	high

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