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VulnerabilityPublished

CVE-2026-63967: Linux kernel · iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 30 Oct 2026, 20:25 UTC

Severity
Low

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

Thin evidence

One scorer or none
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Affected software

ProductAffectedFixed in
Linux LinuxAffected
  • =5.9.5
Fixed in–

AI-suggested

A fix is available that zero-initializes the stack structure in the tagged FIFO buffer path of the st_lsm6dsx driver. Users should update to the patched Linux kernel version 5.9.5 or later that includes this fix.

Description

A stack memory leak vulnerability was identified and fixed in the Linux kernel's iio: imu: st_lsm6dsx driver. The issue involved uninitialized memory in a tagged FIFO buffer structure that could leak kernel stack data to userspace. The fix involved zero-initializing the stack structure to prevent leakage.

References

Community reviews

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