Quick answers
- Is CVE-2026-20473 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20473 being exploited in the wild.
- How severe is CVE-2026-20473?
- Medium severity, with a CVSS score of 6, published 3 August 2026.
- Which products and versions are affected?
- MediaTek Dimensity.
- Is there a fix for CVE-2026-20473?
- 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-2026-20473 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-20473?
- Check whether you run MediaTek Dimensity, MediaTek Mt6991, MediaTek Mt6991 Firmware 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
This is a use-after-free memory corruption vulnerability in the display subcomponent of MediaTek chipsets. The root cause involves improper memory management leading to access of freed memory regions. Exploitation requires that an attacker has already obtained System privilege, meaning local access to the device. No user interaction is required once System privilege is obtained. Successful exploitation can lead to local privilege escalation. A patch is available as indicated by Patch ID ALPS11019722.
Affected products
- MediaTek Dimensity
Timeline
- 2026-08-03: disclosed