CVE-2026-68479High· 7.8▾ TwilightIn 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
Last analysed / modified upstream
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.
Linux >= db33c77dddc2ed2cff3061d0b096a9f5ab0c3647 < 39e01b4addfbbe177567d6ed1dfb81f9cccb19e6Linux >= db33c77dddc2ed2cff3061d0b096a9f5ab0c3647 < bda3c598ade6ea03884074b91e31608326684921Linux >= db33c77dddc2ed2cff3061d0b096a9f5ab0c3647 < a4cb830e0b55ac76c849fd7840afb251f4c028faLinux >= db33c77dddc2ed2cff3061d0b096a9f5ab0c3647 < 68c5a2a19987c035eb129e627e579adafb04f637Linux >= db33c77dddc2ed2cff3061d0b096a9f5ab0c3647 < 83534891c058ed71e251135072640911670869aaLinux >= db33c77dddc2ed2cff3061d0b096a9f5ab0c3647 < 6744ab60dfac55d1df5733960aad5be300984301Linux >= db33c77dddc2ed2cff3061d0b096a9f5ab0c3647 < f1ca750c0510bdbb504bf084d2f196ef2af92ea6Linux >= db33c77dddc2ed2cff3061d0b096a9f5ab0c3647 < 609c5b04a28dc1b0f3af6a7bc93055135b2d2059Linux 4.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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