In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: validate DDC record lengths Parse DDC record lengths in unsigned storage so 0xFF does not wrap. Reject records smaller than the mandatory three-byte header, records exceeding U8_MAX, and records exceeding remaining firmware bytes before issuing Intel_Write_DDC. This issue was reported by Claude Mythos.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98819.mbox cve-icon
https://git.kernel.org/stable/c/069031f569f1681f17e863f48c221a6091b47850 cve-icon cve-icon
https://git.kernel.org/stable/c/780665bed305718a9fbb10e4aa4d5570d772c9f6 cve-icon cve-icon
https://git.kernel.org/stable/c/7df748aa9f9ecab514e5989ed89c9ba35b6e5574 cve-icon cve-icon
https://git.kernel.org/stable/c/93f00db7441eec84a11029662f04b152386107a9 cve-icon cve-icon
https://git.kernel.org/stable/c/b0fce76873a5e6a6820354409b26693ac5f8b251 cve-icon cve-icon
https://git.kernel.org/stable/c/c9c15d4d8956df8c564f7c210e4dc5b9b820d97a cve-icon cve-icon
https://git.kernel.org/stable/c/e65c8f4ca39959889fcaf9779c3adf1a421aeb8d cve-icon cve-icon
https://git.kernel.org/stable/c/f3617369fbb30a4d2e54841ab8e92ca4fa211e56 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-98819 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-98819 cve-icon
History

Fri, 30 Oct 2026 13:00:00 +0000

Type Values Removed Values Added
References

Sat, 24 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
References
Metrics threat_severity

None

 cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Wed, 21 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
References

Sun, 18 Oct 2026 16:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: validate DDC record lengths Parse DDC record lengths in unsigned storage so 0xFF does not wrap. Reject records smaller than the mandatory three-byte header, records exceeding U8_MAX, and records exceeding remaining firmware bytes before issuing Intel_Write_DDC. This issue was reported by Claude Mythos.
Title Bluetooth: btintel: validate DDC record lengths
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-10-18T15:49:11.226Z

Updated: 2026-10-30T12:39:59.162Z

Reserved: 2026-09-25T10:25:14.371Z

Link: CVE-2026-98819

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-18T16:17:36.143

Modified: 2026-10-30T13:21:29.033

Link: CVE-2026-98819

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-18T00:00:00Z

Links: CVE-2026-98819 - Bugzilla