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VulnerabilityPublished

CVE-2026-63935: Linux kernel · iio: adc: nxp-sar-adc: fix division by zero in write_raw

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 30 Oct 2026, 15:48 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

AI-suggested

A fix has been implemented in the Linux kernel to add validation checks for the sampling frequency and to prevent unsigned integer underflow. Users should update to the fixed kernel version once available.

Description

A vulnerability in the Linux kernel's nxp-sar-adc driver allowed a division by zero error when a user wrote zero or a negative value to the sampling_frequency sysfs attribute. This flaw could cause kernel instability due to improper input validation and an unsigned integer underflow issue was also fixed to prevent wrapping of a cycle count variable.

References

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