The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990051 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    net: fddi: fix UAF in fza_probe

    fp is netdev private data and it cannot be     used after free_netdev() call. Using fp after free_netdev()     can cause UAF bug. Fix it by moving free_netdev() after error message.

    TURBOchannel adapter)

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

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

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

  - In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is     netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause     UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter) (CVE-2021-47306)

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986873 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    net: fddi: fix UAF in fza_probe

    fp is netdev private data and it cannot be     used after free_netdev() call. Using fp after free_netdev()     can cause UAF bug. Fix it by moving free_netdev() after error message.

    TURBOchannel adapter)

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

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

ID	Name	Product	Family	Published	Updated	Severity
272665	Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990051)	Nessus	Unity Linux Local Security Checks	11/5/2025	11/5/2025	high
249766	Linux Distros Unpatched Vulnerability : CVE-2021-47306	Nessus	Misc.	8/15/2025	1/15/2026	high
268400	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986873)	Nessus	Unity Linux Local Security Checks	10/7/2025	10/15/2025	high
239342	TencentOS Server 4: kernel (TSSA-2024:0981)	Nessus	Tencent Local Security Checks	6/16/2025	12/4/2025	high

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