Quick answers
- Is CVE-2026-20584 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20584 being exploited in the wild.
- How severe is CVE-2026-20584?
- Informational severity, published 2 November 2026.
- Which products and versions are affected?
- MediaTek Chipset USB driver.
- Is there a fix for CVE-2026-20584?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-20584 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-20584?
- Check whether you run MediaTek Chipset USB driver. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A missing bounds check in the USB driver enables memory corruption on MediaTek processors. The vulnerability requires local access and prior system privilege acquisition; an attacker can then trigger the flaw without user interaction to escalate or maintain privilege. The advisory does not specify a publicly available patch, though internal patch identifiers suggest fixes are in development.
Affected products
- MediaTek Chipset USB driver
Timeline
- 2026-11-02: disclosed