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Vulnerability record · CVE-2026-74531 · published 15 August 2026

CVE-2026-74531: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference …

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

8.8 CVSS 3.1 High EPSS 0.40% · top 68.6% Received
8.8CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
23 Aug 2026Last modified by NVD

Description

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

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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Source: NIST National Vulnerability Database (record CVE-2026-74531), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.