CVE-2026-43354: Linux kernel · iio: proximity: hx9023s: Protect against division by zero in set_samp_freq
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 May 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
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 25.10linuxpkg:deb/ubuntu/linux?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 25.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available for this vulnerability in the linux-hwe-edge kernel versions listed as affected. Users should update to a patched kernel version to remediate the issue. Since this is a kernel-level flaw, applying the official kernel updates from the vendor or distribution is the recommended mitigation.
Description
A vulnerability in the Linux kernel's iio proximity driver for hx9023s devices could cause a division by zero error in the set_samp_freq function when the sampling frequency is unspecified. This issue has been resolved in affected versions of the linux-hwe-edge kernel.
References
- ubuntu.com/security/CVE-2026-43354 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-43354 (opens in a new tab)
- git.kernel.org/linus/a318cfc0853706f1d6ce682dba660bc455d674ef (opens in a new tab)
- git.kernel.org/stable/c/451ec5e67444f8460f9706a1bde146b5bbc86ce6 (opens in a new tab)
- git.kernel.org/stable/c/739fdfe65678d8e5dcf59496c56b32ab3ba3dbaa (opens in a new tab)
- git.kernel.org/stable/c/a318cfc0853706f1d6ce682dba660bc455d674ef (opens in a new tab)
- git.kernel.org/stable/c/ad9da7d39cecd3e92f54149ea0ebca390f33fe69 (opens in a new tab)