In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013451 advisory.

    In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation     to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP     SF_BROADCAST support.)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010749 advisory.

    In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation     to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP     SF_BROADCAST support.)

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 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation     to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP     SF_BROADCAST support.) (CVE-2021-32606)

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

ID	Name	Product	Family	Severity
309301	Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013451)	Nessus	Unity Linux Local Security Checks	high
308411	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010749)	Nessus	Unity Linux Local Security Checks	high
247160	Linux Distros Unpatched Vulnerability : CVE-2021-32606	Nessus	Misc.	high

Detections

Analytics

CVE-2021-32606

high

Tenable Plugins

high

high

high