CVE-2026-54436
Vulnerabilities in the QNX io-char library Impacts QNX Software Development Platform
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-122 |
| Vendor | blackberry ltd |
| Product | qnx software development platform |
| Published | Nov 10, 2026 |
| Last Updated | Nov 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
BlackBerry Ltd / QNX Software Development Platform
cpe:2.3:a:blackberry:qnx_software_development_platform:8.0:*:*:*:*:*:*:* cpe:2.3:a:blackberry:qnx_software_development_platform:7.1:*:*:*:*:*:*:* cpe:2.3:a:blackberry:qnx_software_development_platform:7.0:*:*:*:*:*:*:*