CVE-2026-54436
HIGH
NVD
CVSS Score
7.4
Severity
HIGH
Published
Nov 10, 2026
Vendor
unknown
Description
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.