Quick answers
- Is CVE-2026-20580 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20580 being exploited in the wild.
- How severe is CVE-2026-20580?
- Informational severity, published 2 November 2026.
- Which products and versions are affected?
- MediaTek Dimensity 5G; MediaTek Helio 4G; MediaTek Genio IoT; MediaTek Kompanio.
- Is there a fix for CVE-2026-20580?
- 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-2026-20580 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-20580?
- Check whether you run MediaTek Dimensity 5G, MediaTek Genio IoT, MediaTek Helio 4G or one of the others listed. 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 use-after-free flaw in USB handling allows code executing with system privilege to access freed memory, causing a kernel crash. The vulnerability requires existing system-level access (local attack vector) and results in denial of service through system crash. No privilege escalation is possible from this flaw alone.
Affected products
- MediaTek Dimensity 5G
- MediaTek Helio 4G
- MediaTek Genio IoT
- MediaTek Kompanio
Timeline
- 2026-11-02: disclosed