MediaTekCVE-2026-20465
MediaTek chipset: out-of-bounds write
High8.1CVE-2026-20465 · Published Aug 3, 2026 · updated Aug 28, 2026
In wlan AP driver, there is a possible out of bounds write due to a missing bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00489200; Issue ID: MSV-7834.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| MediaTek chipset Product | <= MT6890 | No fix yet |
| <= MT7915 | No fix yet | |
| <= MT7916 | No fix yet | |
| <= MT7981 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity from
- CISA (its enrichment of the CVE record)
- Weakness
- CWE-122
More MediaTek advisories
All MediaTek| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 3 | MediaTek chipset: privilege escalation | Medium6.0 | No fix yet |
| Aug 3 | MediaTek chipset: out-of-bounds read | Medium4.4 | No fix yet |
| Aug 3 | MediaTek chipset: out-of-bounds write | Medium5.5 | No fix yet |
| Aug 3 | MediaTek chipset: race condition | Medium5.5 | No fix yet |
| Aug 3 | MediaTek chipset: out-of-bounds write | Medium4.4 | No fix yet |
| Aug 3 | MediaTek chipset: out-of-bounds read | Medium5.5 | No fix yet |