SECUFOCUSNOW
Home›CVE index›CVE-2026-63947
Review reviewHigh

CVE-2026-63947

Linux

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: fix missing length checks in hidp_input_report() hidp_input_report() reads keyboard and mouse payload data from an skb without first verifying that skb->len contains enough data. hidp_recv_intr_frame() pulls the 1-byte HIDP header before dispatching to hidp_input_report(). If a paired device sends a truncated packet, the handler reads beyond the valid skb data, resulting in an out-of-bounds read of skb data. The OOB bytes may be interpreted as phantom key presses or spurious mouse movement. Replace the open...

CVSS
8.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.07.20
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 8.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: fix missing length checks in hidp_input_report() hidp_input_report() reads keyboard and mouse payload data from an skb without first verifying that skb->len contains enough data. hidp_recv_intr_frame() pulls the 1-byte HIDP header before dispatching to hidp_input_report(). If a paired device sends a truncated packet, the handler reads beyond the valid skb data, resulting in an out-of-bounds read of skb data. The OOB bytes may be interpreted as phantom key presses or spurious mouse movement. Replace the open...

Affected product and versions

Product
Linux
Affected versions
>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1f08a90013e1e632b34321334e861fcefc056505, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cc3832b19f863e3677c5651f001a2e3795f39eb8, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d313683d6ccdd8c01e0562270a2ae25b86d8461d, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d7d6a81b8dd1a8d084a1b755db9406041d53adb5, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6348dfed5b0f9c6074f14322332e97493d32fef0, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b83dcacd2ec7fcc5a48be215f82d573759f87ec2, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6, >= 2.6.12
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Not available