CVE-2026-64275

Kernel panic via zero touchpad trace counts

Published Jul 25, 2026 · Updated Jul 25, 2026

Divide-by-zero in the elan_i2c driver in the Linux Kernel allows local users to trigger a kernel panic during touchpad device probe. The driver divides physical dimensions by unvalidated x_traces and y_traces values and can also subtract 90 from an undersized unsigned width, producing underflow. Exploitation requires local access and an affected Elan I2C touchpad whose firmware or device tree supplies invalid dimensions; the bounded consequence is a host crash.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Divide-by-zero in the elan_i2c driver in the Linux Kernel allows local users to trigger a kernel panic during touchpad device probe. The driver divides physical dimensions by unvalidated x_traces and y_traces values and can also subtract 90 from an undersized unsigned width, producing underflow. Exploitation requires local access and an affected Elan I2C touchpad whose firmware or device tree supplies invalid dimensions; the bounded consequence is a host crash.

The record

CVE
CVE-2026-64275
Published
Jul 25, 2026
Updated
Jul 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-369, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 25, 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=3.19
  2. Affected versionversion=6696777c6506fa52b2a0282121195843ed855be6 <01e0317c256c560d8dcce2e9825eb6142ee34611
  3. Affected versionversion=6696777c6506fa52b2a0282121195843ed855be6 <2f281ff0163a38fdc4cb4061f0c241e643283a5e
  4. Affected versionversion=6696777c6506fa52b2a0282121195843ed855be6 <59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d
  5. Affected versionversion=6696777c6506fa52b2a0282121195843ed855be6 <6bac57d8fe2a077b8a85b4140eeb7999078158eb
  6. Affected versionversion=6696777c6506fa52b2a0282121195843ed855be6 <8c1db3418a419e788691746b9c47f863c2fd4890
  7. Affected versionversion=6696777c6506fa52b2a0282121195843ed855be6 <df2b818fa009c10ff6ba875a1663ff001cda9558
  8. Affected versionversion=6696777c6506fa52b2a0282121195843ed855be6 <f6d10af2036d1d4a847a74fe47ebbf93bce3c84c
  9. Affected versionversion=6696777c6506fa52b2a0282121195843ed855be6 <feb4866a42ec94764c7eb58012256f6f37664727

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=3.19; version=6696777c6506fa52b2a0282121195843ed855be6 <01e0317c256c560d8dcce2e9825eb6142ee34611; version=6696777c6506fa52b2a0282121195843ed855be6 <2f281ff0163a38fdc4cb4061f0c241e643283a5e; version=6696777c6506fa52b2a0282121195843ed855be6 <59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d; version=6696777c6506fa52b2a0282121195843ed855be6 <6bac57d8fe2a077b8a85b4140eeb7999078158eb; version=6696777c6506fa52b2a0282121195843ed855be6 <8c1db3418a419e788691746b9c47f863c2fd4890; version=6696777c6506fa52b2a0282121195843ed855be6 <df2b818fa009c10ff6ba875a1663ff001cda9558; version=6696777c6506fa52b2a0282121195843ed855be6 <f6d10af2036d1d4a847a74fe47ebbf93bce3c84c; version=6696777c6506fa52b2a0282121195843ed855be6 <feb4866a42ec94764c7eb58012256f6f37664727

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-369Divide By Zero
T1499Endpoint Denial of Service

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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