High CVSS 7.4
CVE-2026-4017
Buffer Overflow in the entry handler of the TraceEvent() system call could allow an attacker with local access to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel.
What this means
- Exposure
- Exploitable with local access to the machine, without authentication and with no action from the victim. The attack does require particular conditions, which makes it less systematic.
- Impact
- An attacker can read sensitive data, modify or destroy data and take the service offline.
- Weakness
- A stack overflow overwrites the return address, which often leads to code execution.
- Likelihood
- Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.
What to doFold into the next patch cycle.
Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.