Vulnerability in Linux

CVE-2026-80692

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (25.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-80692: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Linux — versions 5dd0bd277a0a936708a33ecc447dce77a08cbde6, 6.9, d948e1ffa1d40240d5c81af6dcbcb87b39cb8d3c

References

Frequently asked questions

What is CVE-2026-80692?
CVE-2026-80692 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-08-28.
How severe is CVE-2026-80692?
High severity. CVSS v3 base score is 8.8 out of 10.