MediaTekCVE-2026-20516
MediaTek chipset: privilege escalation
Medium5.5CVE-2026-20516 · Published Sep 7, 2026 · updated Sep 22, 2026
In MiracastService, there is a possible escalation of privilege due to a confused deputy. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11060069 / DTV04881615; Issue ID: MSV-7882.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| MediaTek chipset Product | <= MT5586 | No fix yet |
| <= MT5836 | No fix yet | |
| <= MT5838 | No fix yet | |
| <= MT5867 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity from
- CISA (its enrichment of the CVE record)
- Weakness
- CWE-926
More MediaTek advisories
All MediaTek| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 7 | MediaTek chipset: information disclosure | Medium4.4 | No fix yet |
| Sep 7 | MediaTek chipset: information disclosure | Medium4.4 | No fix yet |
| Sep 7 | MediaTek chipset: use after free | Medium5.5 | No fix yet |
| Sep 7 | MediaTek chipset: privilege escalation | Medium6.7 | No fix yet |
| Sep 7 | MediaTek chipset: information disclosure | Medium4.4 | No fix yet |
| Sep 7 | MediaTek chipset: denial of service | Medium5.3 | No fix yet |