Quick answers
- Is CVE-2026-20488 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20488 being exploited in the wild.
- How severe is CVE-2026-20488?
- Medium severity, with a CVSS score of 4.4, published 3 August 2026.
- Which products and versions are affected?
- MediaTek Mt6761 <unknown>; MediaTek Mt8766 <unknown>; MediaTek Mt8768 <unknown>.
- Is there a fix for CVE-2026-20488?
- A patch was published on 2026-08-03: Patch ID ALPS11004276 available; OEMs notified minimum 2 months prior Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-20488 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-20488?
- Check whether you run MediaTek Mt6761, MediaTek Mt6991, MediaTek Mt6991 Firmware or one of the others listed at an affected version. 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
The vulnerability is a missing bounds check in the display subsystem of affected MediaTek chipsets, classified as CWE-125 (out-of-bounds read). An attacker with System privilege can trigger an out-of-bounds memory read by interacting with the display driver without requiring user interaction. The vulnerability allows reading adjacent memory regions that may contain sensitive information. The attack is local only and requires prior elevation to system privilege level. MediaTek issued patches (Patch ID: ALPS11004276) and notified device OEMs at least two months before the August 2026 public disclosure; no active exploitation in the wild has been reported.
Affected products
- MediaTek MT6761 <unknown>
- MediaTek MT8766 <unknown>
- MediaTek MT8768 <unknown>
Timeline
- 2026-08-03: disclosed: MediaTek Product Security Bulletin published
- 2026-08-03: patched: Patch ID ALPS11004276 available; OEMs notified minimum 2 months prior