CVE-2026-80768Hinoki check available

Kernel stack corruption via I2C response race

Published Sep 4, 2026 · Updated Sep 4, 2026

Memory corruption in the Linux kernel ft260 HID driver from 5.13 allows physically proximate attackers to corrupt kernel stack data. ft260_i2c_read() stores a caller buffer in dev->read_buf, while ft260_raw_event() copies a delayed device payload without serializing timeout teardown. Exploitation requires a malicious or malfunctioning FT260 device to win the response-timeout race; the bounded write can destabilize the kernel, but no privilege escalation is established.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Memory corruption in the Linux kernel ft260 HID driver from 5.13 allows physically proximate attackers to corrupt kernel stack data. ft260_i2c_read() stores a caller buffer in dev->read_buf, while ft260_raw_event() copies a delayed device payload without serializing timeout teardown. Exploitation requires a malicious or malfunctioning FT260 device to win the response-timeout race; the bounded write can destabilize the kernel, but no privilege escalation is established.

The record

CVE
CVE-2026-80768
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 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=5.13
  2. Affected versionversion=6a82582d9fa438045191074856f47165334f2777 <2b907001e8a83cdb71e899fd3d77ab51e2c03f10
  3. Affected versionversion=6a82582d9fa438045191074856f47165334f2777 <460514d46e8892189fc933a1b4433811cfa5c309
  4. Affected versionversion=6a82582d9fa438045191074856f47165334f2777 <5aa5a1b7cc4b4bec5497ad9ef113fdfe37b232f3
  5. Affected versionversion=6a82582d9fa438045191074856f47165334f2777 <77832d8f1c81d9f84b6b54807fb278586001d754
  6. Affected versionversion=6a82582d9fa438045191074856f47165334f2777 <90e9298f2e4336a0e1ca7eeb173403df78056164
  7. Affected versionversion=6a82582d9fa438045191074856f47165334f2777 <a8e1f970f9040294cfd9100c681c32af6c2aeec0
  8. Affected versionversion=6a82582d9fa438045191074856f47165334f2777 <bf3e39df3a397fd82967a31d17c4e02c7feab221
  9. Affected versionversion=6a82582d9fa438045191074856f47165334f2777 <d7ffbdc076675c84128d5b904e4d5167fe9f3a7f

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.13; version=6a82582d9fa438045191074856f47165334f2777 <2b907001e8a83cdb71e899fd3d77ab51e2c03f10; version=6a82582d9fa438045191074856f47165334f2777 <460514d46e8892189fc933a1b4433811cfa5c309; version=6a82582d9fa438045191074856f47165334f2777 <5aa5a1b7cc4b4bec5497ad9ef113fdfe37b232f3; version=6a82582d9fa438045191074856f47165334f2777 <77832d8f1c81d9f84b6b54807fb278586001d754; version=6a82582d9fa438045191074856f47165334f2777 <90e9298f2e4336a0e1ca7eeb173403df78056164; version=6a82582d9fa438045191074856f47165334f2777 <a8e1f970f9040294cfd9100c681c32af6c2aeec0; version=6a82582d9fa438045191074856f47165334f2777 <bf3e39df3a397fd82967a31d17c4e02c7feab221; version=6a82582d9fa438045191074856f47165334f2777 <d7ffbdc076675c84128d5b904e4d5167fe9f3a7f

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

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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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