SB20260720284 - Out-of-bounds read in Linux kernel bluetooth hidp
Published: July 20, 2026
Security Bulletin ID
SB20260720284
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-63947)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 5.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in hidp_input_report() when processing truncated Bluetooth HIDP input packets. A remote user can send a specially crafted truncated packet to disclose sensitive information.
Exploitation requires a paired Bluetooth device.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1f08a90013e1e632b34321334e861fcefc056505
- https://git.kernel.org/stable/c/2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6
- https://git.kernel.org/stable/c/6348dfed5b0f9c6074f14322332e97493d32fef0
- https://git.kernel.org/stable/c/b83dcacd2ec7fcc5a48be215f82d573759f87ec2
- https://git.kernel.org/stable/c/cc3832b19f863e3677c5651f001a2e3795f39eb8
- https://git.kernel.org/stable/c/d313683d6ccdd8c01e0562270a2ae25b86d8461d
- https://git.kernel.org/stable/c/d7d6a81b8dd1a8d084a1b755db9406041d53adb5