IO-CHAR · CVE-2026-54436 · Infrastructure
NO FIX YET
The io-char library's DCMD_CHR_WAITINFO devctl() handler has a heap-based buffer overflow in the Character I/O device driver. A local attacker can tamper with data, run arbitrary code, or crash the driver.
first public Nov 10, 2026 · 1 source
Could this affect your app?
Free first check from your website. Connect your repo for the full answer.
Who cares io-char, qnx
Unknown from the sources. In the analyst’s queue.
No fix yet, per the sources.
Heap-based Buffer Overflow in the io-char library's DCMD_CHR_WAITINFO devctl() handler could allow an attacker with local access to cause data tampering, arbitrary code execution, or a crash in the Character I/O device driver.
This page as .md · .json · CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
Check it with your coding agent
It reads this page and tells you if your code is affected.
Are you affected?
Ask from here. InfraStack checks the affected versions against your stack and answers in your inbox.
InfraStack checks the affected versions against your stack and answers in Slack, with the evidence and the fix.