HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq

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Summary

CVECVE-2026-43051
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:51 UTC
Updated2026-05-03 07:16:24 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq The wacom_intuos_bt_irq() function processes Bluetooth HID reports without sufficient bounds checking. A maliciously crafted short report can trigger an out-of-bounds read when copying data into the wacom structure. Specifically, report 0x03 requires at least 22 bytes to safely read the processed data and battery status, while report 0x04 (which falls through to 0x03) requires 32 bytes. Add explicit length checks for these report IDs and log a warning if a short report is received.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS: 0.000240000 probability, percentile 0.068220000 (date 2026-05-02)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a d0ae84b3c9f3ea1a564eb1b7612113ca9fe8aada git Not specified
CNA Linux Linux affected 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a 5b5b9730111808410e404ceac2fabd32eef92fbd git Not specified
CNA Linux Linux affected 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a fa8901cb1f0b2113a342db93bd5684b59fe99dcf git Not specified
CNA Linux Linux affected 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a 8bd690ac1242332c73cba10dacdad6c6642bbb94 git Not specified
CNA Linux Linux affected 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a 41026bcc0fdf82605205c27935ef719cbc07193b git Not specified
CNA Linux Linux affected 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a c8dc23c97680eebefde06da5858aaef1b37cf75d git Not specified
CNA Linux Linux affected 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a 3d78386b144453c47e81bf62dc3601b757f02d99 git Not specified
CNA Linux Linux affected 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a 2f1763f62909ccb6386ac50350fa0abbf5bb16a9 git Not specified
CNA Linux Linux affected 3.3 Not specified
CNA Linux Linux unaffected 3.3 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.168 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.134 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.81 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/41026bcc0fdf82605205c27935ef719cbc07193b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fa8901cb1f0b2113a342db93bd5684b59fe99dcf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8bd690ac1242332c73cba10dacdad6c6642bbb94 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3d78386b144453c47e81bf62dc3601b757f02d99 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2f1763f62909ccb6386ac50350fa0abbf5bb16a9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c8dc23c97680eebefde06da5858aaef1b37cf75d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5b5b9730111808410e404ceac2fabd32eef92fbd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d0ae84b3c9f3ea1a564eb1b7612113ca9fe8aada 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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