VULNERABILITY INTELLIGENCE
CVE-2026-68479
CVSS score7.8 HIGH
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-08-15
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl: validate firmware patch bounds rtlbt_parse_firmware() copies patch_length - 4 bytes before appending the firmware version. A malformed firmware patch shorter than the version field can make this subtraction underflow and turn the copy into an oversized read and write during Bluetooth setup. The existing patch_offset + patch_length check can also wrap on 32-bit architectures. Validate the patch length and range without arithmetic overflow before allocating or copying the patch.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-190