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CVE-2021-22156

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CVE-2021-22156

Published: Aug 17, 2021

Modified: Aug 22, 2025

PUBLISHED

CVSS v3.1

9.0

CRITICAL

Description

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.

VendorProductVersions

BlackBerry

QNX Software Development Platform (SDP), QNX OS for Medical and QNX OS for Safety

affected
QNX SDP 6.5.0 SP1 and earlier
affected
QNX OS for Medical 1.1 and earlier
affected
QNX OS for Safety 1.0.1 and earlier

Weaknesses (CWE)

CWE-190

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

References

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