QNX Hypervisor: Invalid memory access in QNX Virtual Machine (QVM)
Summary
A flaw in the MSI-X table handling of the QNX Virtual Machine (QVM) in QNX Hypervisor and QNX Hypervisor for Safety allows an attacker who controls a guest VM to corrupt memory in the QVM. Successful exploitation could lead to arbitrary code execution, information disclosure or a crash of the QVM. The attack is local, requires high complexity and low privileges, and needs an attacker already running code in a guest.
Affected
- QNX Hypervisor 8.0, 2.2, 2.0
- QNX Hypervisor for Safety 8.0, 2.2, 2.0
- Affected component: QNX Virtual Machine (QVM)
Fixed in
Unknown. Check BlackBerry KB article 141343 for fixed versions.
Workaround
Unknown. No vendor-confirmed workaround was retrieved. Third-party analysis suggests restricting guest access to trusted users and monitoring QVM activity until a fix is available; this is unverified.
Exploitation
- No evidence of exploitation in the wild found; not listed in KEV.
- No public proof of concept found.
- The CVE was published on 10 November 2026; NVD analysis was pending at the time of the research.
Our recommendation
- Check the asset inventory for QNX Hypervisor, including OEM, industrial and vehicle systems.
- If not present, record as not applicable.
- If present, obtain the fixed version from BlackBerry or the OEM, apply it, and restrict who can control guest VMs in the meantime.
- Review the BlackBerry advisory directly.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE Record CVE-2026-50077 www.cve.org
- BlackBerry KB article 141343 support.blackberry.com
- OffSeq threat radar CVE-2026-50077 radar.offseq.com
- Strix CVE-2026-50077 www.strix.ai
- threatint mirror CVE-2026-50077 cve.threatint.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 04:45.
Original description (NVD)
Invalid Memory Access via the MSI-X table in QVM could allow an attacker in the guest to execute arbitrary code in the QVM to cause memory corruption, information disclosure or a crash of the QVM.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.