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CVE-2026-43051— HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于wacom驱动中wacom_intuos_bt_irq函数未对蓝牙HID报告进行充分边界检查，恶意短报告可触发越界读取。

CVSS 8.1 · High EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1215

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a< d0ae84b3c9f3ea1a564eb1b7612113ca9fe8aada affected
78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a< 5b5b9730111808410e404ceac2fabd32eef92fbd affected
78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a< fa8901cb1f0b2113a342db93bd5684b59fe99dcf affected
78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a< 8bd690ac1242332c73cba10dacdad6c6642bbb94 affected
78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a< 41026bcc0fdf82605205c27935ef719cbc07193b affected
78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a< c8dc23c97680eebefde06da5858aaef1b37cf75d affected
78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a< 3d78386b144453c47e81bf62dc3601b757f02d99 affected
78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a< 2f1763f62909ccb6386ac50350fa0abbf5bb16a9 affected
… +10 more rows
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I. Basic Information for CVE-2026-43051

Vulnerability Information
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Vulnerability Title
HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq
Source: CVE Program / CVE List V5
Vulnerability Description
In 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于wacom驱动中wacom_intuos_bt_irq函数未对蓝牙HID报告进行充分边界检查，恶意短报告可触发越界读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a ~ d0ae84b3c9f3ea1a564eb1b7612113ca9fe8aada -
Linux Linux 3.3 -

II. Public POCs for CVE-2026-43051

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III. Intelligence Information for CVE-2026-43051

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Patches & Fixes for CVE-2026-43051 (8)

Same Patch Batch · Linux · 2026-05-01 · 146 CVEs total

CVE-2026-43011 9.8 CRITICAL net/x25: Fix potential double free of skb
CVE-2026-43037 9.8 CRITICAL ip6_tunnel: clear skb2->cb[] in ip4ip6_err()
CVE-2026-31705 9.8 CRITICAL ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment
CVE-2026-43038 9.8 CRITICAL ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()
CVE-2026-43039 9.8 CRITICAL net: ti: icssg-prueth: fix missing data copy and wrong recycle in ZC RX dispatch
CVE-2026-31718 9.8 CRITICAL ksmbd: fix use-after-free in __ksmbd_close_fd() via durable scavenger
CVE-2026-43018 8.8 HIGH Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt
CVE-2026-31773 8.8 HIGH Bluetooth: SMP: derive legacy responder STK authentication from MITM state
CVE-2026-31739 8.8 HIGH crypto: tegra - Add missing CRYPTO_ALG_ASYNC
CVE-2026-31735 8.8 HIGH iommupt: Fix short gather if the unmap goes into a large mapping
CVE-2026-31717 8.8 HIGH ksmbd: validate owner of durable handle on reconnect
CVE-2026-43048 8.8 HIGH HID: core: Mitigate potential OOB by removing bogus memset()
CVE-2026-31706 8.8 HIGH ksmbd: validate num_aces and harden ACE walk in smb_inherit_dacl()
CVE-2026-31709 8.8 HIGH smb: client: validate the whole DACL before rewriting it in cifsacl
CVE-2026-31712 8.3 HIGH ksmbd: require minimum ACE size in smb_check_perm_dacl()
CVE-2026-31771 8.1 HIGH Bluetooth: hci_event: move wake reason storage into validated event handlers
CVE-2026-31779 8.1 HIGH wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()
CVE-2026-31708 8.1 HIGH smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path
CVE-2026-31695 7.8 HIGH wifi: virt_wifi: remove SET_NETDEV_DEV to avoid use-after-free
CVE-2026-31780 7.8 HIGH wifi: wilc1000: fix u8 overflow in SSID scan buffer size calculation

Showing top 20 of 146 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43051

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