Name: CVE-2026-74530: Undefined Security Weakness
Creator: Rapid7
Published: 2026-08-15T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-74530, CVSS 8.8, EPSS 0.00375

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

Bluetooth: hci_sync: hold conn in hci_connect_big_sync() callback

There is theoretical UAF if the conn is freed while the hci_sync task is running.

Hold refcount to avoid that. Handle NULL hcon, return 0 + do nothing to match the previous behavior.

CVSS Details

CVSS 3.1 Base Score: 8.8
CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Redhat_linux	—	No solution exists	Aug 24, 2026	Aug 15, 2026
Ubuntu	—	Upgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-6.8.0-1036-nvidia-tegra-rtUpgrade linux-image-6.8.0-1036-nvidia-tegraUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-tegraUpgrade linux-image-nvidia-tegra-6.8	Oct 7, 2026	Oct 6, 2026

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CVSS Details

Covered by Rapid7

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