CVE-2021-22156 CRITICAL

CVE-2021-22156

Vendor Blackberry
Product QNX Software Development Platform (SDP), QNX OS for Medical and QNX OS for Safety
Weakness CWE-190
Published August 17, 2021
Last update August 22, 2025
View on NVD All CVEs

CVSS base score

9.0/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

An integer overflow vulnerability in the calloc() function of the C runtime library of affected versions of BlackBerry® QNX Software Development Platform (SDP) version(s) 6.5.0SP1 and earlier, QNX OS for Medical 1.1 and earlier, and QNX OS for Safety 1.0.1 and earlier that could allow an attacker to potentially perform a denial of service or execute arbitrary code.

Key dates

02Disclosure timeline

August 17, 2021 CVE published
August 22, 2025 Record updated