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.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Tue, 10 Nov 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title Vulnerabilities in the QNX io-char library Impacts QNX Software Development Platform
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: blackberry

Published:

Updated: 2026-11-10T18:45:12.077Z

Reserved: 2026-06-15T15:26:06.017Z

Link: CVE-2026-54436

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-10T19:21:16.513

Modified: 2026-11-10T19:21:16.513

Link: CVE-2026-54436

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses