CVE-2026-63935: Linux kernel · iio: adc: nxp-sar-adc: fix division by zero in write_raw
Source GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 19 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 26 Oct 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to add validation checks preventing division by zero and integer underflow in the nxp-sar-adc driver. 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 in the write_raw function. This occurred when a user wrote zero or a negative value to the sampling_frequency sysfs attribute. Additionally, an unsigned integer underflow could occur when the computed cycle count was smaller than a defined constant, causing a wraparound to a large value. The issue has been resolved by adding validation checks to prevent these conditions.