CVE-2021-22156
9.0 · CRITICALOverview
CVE-2021-22156 is a critical-severity vulnerability affecting blackberry qnx_software_development_platform. It was published on August 17, 2021 and has a CVSS 3.1 base score of 9.0 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from blackberry. Update qnx_software_development_platform to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| blackberry | qnx_software_development_platform | >= 0, < 6.5.0 | Affected |
| blackberry | qnx_os_for_medical | 0 | Affected |
| blackberry | qnx_os_for_safety | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2021-22156?
CVE-2021-22156 is a critical-severity vulnerability affecting blackberry qnx_software_development_platform. It was published on August 17, 2021 and has a CVSS 3.1 base score of 9.0 (CRITICAL).
How severe is CVE-2021-22156?
This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-22156?
Check the references section for vendor advisories and patches from blackberry. Update qnx_software_development_platform to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-22156?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-22156 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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