Quick answers
- Is CVE-2026-20481 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-20481 being exploited in the wild.
- How severe is CVE-2026-20481?
- Medium severity, with a CVSS score of 6, published 3 August 2026.
- Which products and versions are affected?
- MediaTek geniezone.
- Is there a fix for CVE-2026-20481?
- A patch was published on 2026-08-03: Patch ID: ALPS10965373 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-20481 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-20481?
- Check whether you run MediaTek GenieZone, MediaTek Mt6989, MediaTek Mt6989 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 vulnerability is a missing bounds check leading to an out-of-bounds write (CWE-787) in MediaTek's geniezone component. The flaw allows an attacker with System privilege to write data beyond allocated buffer boundaries. Since the advisory states that System privilege is required and user interaction is not needed, exploitation requires the attacker to already have elevated system access on the device. Successful exploitation could enable privilege escalation, memory corruption, or arbitrary code execution with system-level permissions. MediaTek issued patch ALPS10965373 to address this issue.
Affected products
- MediaTek geniezone
Timeline
- 2026-08-03: disclosed
- 2026-08-03: patched: Patch ID: ALPS10965373