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CVE-2026-43047— HID: multitouch: Check to ensure report responses match the request

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HID multitouch驱动未检查报告响应是否匹配请求，恶意设备可能使用不同报告ID响应导致OOB写入。

CVSS 7.8 · High EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1215

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095< 516da3f25cfe18643835af1cf09b0e9ffc36c383 affected
6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095< a61163daf8a90b4a7ef154d5fc9c525f665734e3 affected
6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095< 74c6015375d8b9bc1b1eb79f20636c8e894bcad7 affected
6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095< c7a27bb4d0f6573ca0f9c7ef0b63291486239190 affected
6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095< 6a4acd3e86fe5584050c213d95147eba33856033 affected
6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095< 7f66fdbc077faed3b52519228d21d81979e92249 affected
6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095< 2edc92f89eee328b5be5706b5d431bf90669e9c0 affected
6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095< e716edafedad4952fe3a4a273d2e039a84e8681a affected
… +12 more rows
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I. Basic Information for CVE-2026-43047

Vulnerability Information
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Vulnerability Title
HID: multitouch: Check to ensure report responses match the request
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: HID: multitouch: Check to ensure report responses match the request It is possible for a malicious (or clumsy) device to respond to a specific report's feature request using a completely different report ID. This can cause confusion in the HID core resulting in nasty side-effects such as OOB writes. Add a check to ensure that the report ID in the response, matches the one that was requested. If it doesn't, omit reporting the raw event and return early.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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HID multitouch驱动未检查报告响应是否匹配请求，恶意设备可能使用不同报告ID响应导致OOB写入。
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 6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095 ~ 516da3f25cfe18643835af1cf09b0e9ffc36c383 -
Linux Linux 4.4 -

II. Public POCs for CVE-2026-43047

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III. Intelligence Information for CVE-2026-43047

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Patches & Fixes for CVE-2026-43047 (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-2026-31705 9.8 CRITICAL ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment
CVE-2026-43037 9.8 CRITICAL ip6_tunnel: clear skb2->cb[] in ip4ip6_err()
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-2026-31735 8.8 HIGH iommupt: Fix short gather if the unmap goes into a large mapping
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-2026-31717 8.8 HIGH ksmbd: validate owner of durable handle on reconnect
CVE-2026-31709 8.8 HIGH smb: client: validate the whole DACL before rewriting it in cifsacl
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-2026-31712 8.3 HIGH ksmbd: require minimum ACE size in smb_check_perm_dacl()
CVE-2026-31708 8.1 HIGH smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path
CVE-2026-31779 8.1 HIGH wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()
CVE-2026-43051 8.1 HIGH HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq
CVE-2026-31771 8.1 HIGH Bluetooth: hci_event: move wake reason storage into validated event handlers
CVE-2026-31772 7.8 HIGH Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync

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-2026-43047

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