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CVE-2026-43051 is an out-of-bounds read in the Linux kernel Wacom HID driver’s Bluetooth report handler, wacom_intuos_bt_irq(). The handler processed undersized Bluetooth HID reports without validating that sufficient data was present before copying report fields into the Wacom device structure. Report type 0x03 requires at least 22 bytes; report type 0x04, which falls through to the type 0x03 processing path, requires at least 32 bytes. A crafted short report can therefore cause the kernel to read past the received report buffer. The fix adds explicit per-report length validation and emits a warning for short reports.
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Linux kernel Wacom HID driver out-of-bounds read vulnerability in wacom_intuos_bt_irq().
An out-of-bounds read vulnerability in the Linux kernel HID wacom driver's wacom_intuos_bt_irq() function due to insufficient bounds checking on Bluetooth HID reports.
A Linux kernel HID Wacom out-of-bounds read vulnerability in wacom_intuos_bt_irq.
A Linux kernel HID vulnerability in the Wacom driver causing an out-of-bounds read in wacom_intuos_bt_irq.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.