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

  - MIPS: fw: Allow firmware to pass a empty env fw_getenv will use env entry to determine style of env,     however it is legal for firmware to just pass a empty list. Check if first entry exist before running     strchr to avoid null pointer dereference. (CVE-2023-54279)

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-2026-013167 advisory.

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

    MIPS: fw: Allow firmware to pass a empty env

    fw_getenv will use env entry to determine style of env,     however it is legal for firmware to just pass a empty list.

    Check if first entry exist before running strchr to avoid     null pointer dereference.

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.

An update of the linux package has been released.

ID	Name	Product	Family	Published	Updated	Severity
281730	Linux Distros Unpatched Vulnerability : CVE-2023-54279	Nessus	Misc.	1/5/2026	2/3/2026	medium
308045	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013167)	Nessus	Unity Linux Local Security Checks	4/21/2026	4/21/2026	medium
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	7/22/2021	3/23/2026	high

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