Linux Kernel up to 7.1.10/7.2.0 HID hid_is_usb input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.1.10/7.2.0. It has been rated as critical. This affects the function hid_is_usb of the component HID. This manipulation causes input validation. This vulnerability appears as CVE-2026-80773. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.1.10/7.2.0. It has been declared as critical. Affected by this vulnerability is the function hid_is_usb of the component HID. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: HID: huawei: fix missing hid_is_usb() check to_usb_interface() can only be used on a hid_device whose parent is really USB; uhid can create devices that identify as being on BUS_USB, but don't actually have a USB parent. Fix the use of to_usb_interface() without a hid_is_usb() check. I have verified that it is currently possible to trigger a kernel splat due to this bug in an ASAN build, and that this commit fixes the issue.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-80773 since 08/26/2026. The exploitation appears to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/04/2026).

Upgrading to version 7.1.11, 7.2.1 or 7.3-rc1 eliminates this vulnerability. Applying the patch 66805454c01ffefc40d08a962d606cdb73644c5d/9acc2463991cdb0856fdbd63fd7178102c1ed73d/4cdb6b4b34d7823254f6e1b22faf56c96ac57fb9 is able to eliminate this problem.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 7.1.11/7.2.1/7.3-rc1
Patch: 66805454c01ffefc40d08a962d606cdb73644c5d/9acc2463991cdb0856fdbd63fd7178102c1ed73d/4cdb6b4b34d7823254f6e1b22faf56c96ac57fb9

Timelineinfo

08/26/2026 CVE reserved
09/04/2026 +9 days Advisory disclosed
09/04/2026 +0 days VulDB entry created
09/04/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80773 (🔒)
GCVE (CVE): GCVE-0-2026-80773
GCVE (VulDB): GCVE-100-398923

Entryinfo

Created: 09/04/2026 18:19
Changes: 09/04/2026 18:19 (59)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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