CVE-2026-90000

Kernel heap disclosure via undersized HID reports

Published Sep 16, 2026 · Updated Sep 16, 2026

Out-of-bounds access in the Linux HID RMI driver allows physically proximate attackers to disclose kernel heap data via crafted reports. The driver trusts device-declared report sizes, then copies device-controlled lengths past its allocation and loops forever on zero-length replies. A malicious HID device can expose heap contents to userspace and itself, corrupt adjacent slab objects, or hang the probe worker.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in the Linux HID RMI driver allows physically proximate attackers to disclose kernel heap data via crafted reports. The driver trusts device-declared report sizes, then copies device-controlled lengths past its allocation and loops forever on zero-length replies. A malicious HID device can expose heap contents to userspace and itself, corrupt adjacent slab objects, or hang the probe worker.

The record

CVE
CVE-2026-90000
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.16
  2. Affected versionversion=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <056ef8e6700b8b6ca11453a9d4bfb1b868a5cd88
  3. Affected versionversion=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <183da103022ec11af55ba9951d2cc171fb6c836b
  4. Affected versionversion=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <48934c2927414a37a7fadeb6091113177c0b2038
  5. Affected versionversion=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <4956993bb3befdf791d71a4952d8d13bcfd44c7b
  6. Affected versionversion=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <a8be8bbf0952bb7ff46636ead1896769c381fe55
  7. Affected versionversion=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <ab2958e0c94edd63315dd14dc548874cc63a4043
  8. Affected versionversion=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <f4cb9c4556dcb593e66dbb855179dbd351dbb053
  9. Affected versionversion=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <fba600d824597b2a894ecae72fc422c2b8c08f8c

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.16; version=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <056ef8e6700b8b6ca11453a9d4bfb1b868a5cd88; version=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <183da103022ec11af55ba9951d2cc171fb6c836b; version=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <48934c2927414a37a7fadeb6091113177c0b2038; version=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <4956993bb3befdf791d71a4952d8d13bcfd44c7b; version=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <a8be8bbf0952bb7ff46636ead1896769c381fe55; version=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <ab2958e0c94edd63315dd14dc548874cc63a4043; version=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <f4cb9c4556dcb593e66dbb855179dbd351dbb053; version=9fb6bf02e3ad04c20edb8e46536ce3eeda32c736 <fba600d824597b2a894ecae72fc422c2b8c08f8c

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1200Hardware Additions

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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