CVE-2026-43354

System crash via zero sampling-frequency divisor

Published May 8, 2026 · Updated May 8, 2026

Divide by zero in the Linux Kernel hx9023s IIO driver allows local users to crash the system via an unspecified sampling frequency. The hx9023s_set_samp_freq function divides NANO by val * MEGA + val2 without handling both inputs as zero, triggering a kernel fault. The hx9023s driver and a bound device must be present; the reported consequence is an availability-only crash, with no data access or modification.

CVSS severity5.5
Medium
EPSS probability0.12%
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 Linux Kernel hx9023s IIO driver allows local users to crash the system via an unspecified sampling frequency. The hx9023s_set_samp_freq function divides NANO by val * MEGA + val2 without handling both inputs as zero, triggering a kernel fault. The hx9023s driver and a bound device must be present; the reported consequence is an availability-only crash, with no data access or modification.

The record

CVE
CVE-2026-43354
Published
May 8, 2026
Updated
May 8, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-369, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 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=60df548277b7281171f51b87b214ab6717fc6101 <451ec5e67444f8460f9706a1bde146b5bbc86ce6
  2. Affected versionversion=60df548277b7281171f51b87b214ab6717fc6101 <739fdfe65678d8e5dcf59496c56b32ab3ba3dbaa
  3. Affected versionversion=60df548277b7281171f51b87b214ab6717fc6101 <a318cfc0853706f1d6ce682dba660bc455d674ef
  4. Affected versionversion=60df548277b7281171f51b87b214ab6717fc6101 <ad9da7d39cecd3e92f54149ea0ebca390f33fe69
  5. Affected versionversion=6.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=60df548277b7281171f51b87b214ab6717fc6101 <451ec5e67444f8460f9706a1bde146b5bbc86ce6; version=60df548277b7281171f51b87b214ab6717fc6101 <739fdfe65678d8e5dcf59496c56b32ab3ba3dbaa; version=60df548277b7281171f51b87b214ab6717fc6101 <a318cfc0853706f1d6ce682dba660bc455d674ef; version=60df548277b7281171f51b87b214ab6717fc6101 <ad9da7d39cecd3e92f54149ea0ebca390f33fe69; version=6.12

Published CVSS scores

5.5NIST NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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