← All Advisories
Reported from OT-Advisories.com as of

CVE-2026-80721

Last refreshed2026-10-17

Status: UPDATED  |  Advisory ID: CVE-2026-80721

Key Details

CVECVE-2026-80721
CVSS Score / Version
8.8 (High) / CVSS v3.1
Updated2026-10-16
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Prose
attack vector is adjacent; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
Linux Kernel

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

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

Bluetooth: ISO: ensure no dangling hcon references in iso_conn

After iso_conn_del(), ISO sockets should not dereference the hcon any

more. Currently, clearing iso_conn::hcon relies on iso_conn_del()

releasing the last reference to the iso_conn.

Simplify this by explicitly clearing conn->hcon in iso_conn_del(), to

avoid more complex reasoning on races about who holds the last

reference. (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-80721
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-80721

About

OT-Advisories  ·  CVE  ·  NVD  ·  CVSS  ·  KEV  ·  EPSS  ·  CWE
Report compilation © 2026 OT-Advisories.com  ·  CC BY 4.0  ·  Source materials remain the property of their respective publishers as cited.