Out-of-bounds read in Linux kernel - CVE-2026-74507
Published: August 16, 2026
Vulnerability identifier: #VU143278
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-74507
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to an out-of-bounds read in hidp_process_data() when processing a malformed HIDP numbered report response. A remote user can send a specially crafted Bluetooth HIDP data response to cause a denial of service.
Exploitation requires a connected HIDP peer.
Affected software
Linux kernel
Debian Linux
linux (Debian package)
Debian Linux
linux (Debian package)
How to mitigate CVE-2026-74507
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux (Debian package) - update to 6.12.105-1
linux (Debian package) - update to 6.12.105-1
External References
- https://git.kernel.org/stable/c/27cc0e603355c585f1e5da8398faa4d36d498188
- https://git.kernel.org/stable/c/34f53d27b81a16a02828c8fdfa4e02badc326f17
- https://git.kernel.org/stable/c/7e7162427659b70ea17cd41b1f79e2e64c246690
- https://git.kernel.org/stable/c/9c841f59e10b5d75c398a3fc6b2da448d2a2276b
- https://git.kernel.org/stable/c/b7ad105d46acd828e424454815e4cd31069e047a