CVE-2021-22156
Last modified
CVE-2021-22156 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.80% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Blackberry | Qnx Software Development Platform | < 6.5.0 |
| Blackberry | Qnx Software Development Platform | 6.5.0 |
| Blackberry | Qnx Os For Medical | <= 1.1.1 |
| Blackberry | Qnx Os For Safety | <= 1.0.2 |
References
- https://support.blackberry.com/kb/articleDetail?articleNumber=000082334Patch, Vendor Advisory
- https://support.blackberry.com/kb/articleDetail?articleNumber=000082334Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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