# CVE-2026-20517: MediaTek geniezone use-after-free privilege escalation

Source: https://junglewise.ai/threats/cve-2026-20517-mediatek-geniezone-use-after-free-privilege-escalation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-07. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-20517 · Severity: medium · CVSS 6.7 · Published 2026-09-07

MediaTek's geniezone is a security-related component used in mobile chipsets. A use-after-free vulnerability in this component allows an attacker who has already gained system-level privileges to escalate their access further, with no user interaction required. This could enable a compromised device to be taken over completely.

Technologies: [MediaTek GenieZone](https://junglewise.ai/threats/technologies/geniezone). Vendors: [MediaTek](https://junglewise.ai/threats/vendors/mediatek).

## Quick answers

**Is CVE-2026-20517 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-20517 being exploited in the wild.

**How severe is CVE-2026-20517?** Medium severity, with a CVSS score of 6.7, published 7 September 2026.

**Which products and versions are affected?** MediaTek GenieZone <UNKNOWN>.

**Is there a fix for CVE-2026-20517?** 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-2026-20517 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-20517?** Check whether you run MediaTek GenieZone 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 use-after-free memory safety flaw in MediaTek's geniezone component. The attack requires the attacker to already possess system privilege on the affected chipset. No user interaction is needed for exploitation. A successful exploit allows local privilege escalation. The vulnerability is tracked as CVE-2026-20517 with a CVSS score of 6.7 (medium severity). MediaTek has issued a patch with ID ALPS10900510 for affected chipsets.

## Affected products

- MediaTek geniezone <UNKNOWN>

## Timeline

- 2026-09-07: disclosed

## References

- [https://www.mediatek.com/product-security-bulletin/September-2026](https://www.mediatek.com/product-security-bulletin/September-2026)

## Related threats

- [MediaTek Geniezone information disclosure via missing bounds check](https://junglewise.ai/threats/cve-2026-20518-mediatek-geniezone-information-disclosure-via-missing-bounds)
- [MediaTek geniezone out-of-bounds write](https://junglewise.ai/threats/cve-2026-20481-mediatek-geniezone-out-of-bounds-write)
- [MediaTek GenieZone out-of-bounds write privilege escalation](https://junglewise.ai/threats/cve-2026-20455-mediatek-geniezone-out-of-bounds-write-privilege-escalation)
- [MediaTek GenieZone out of bounds write via race condition](https://junglewise.ai/threats/cve-2026-20454-mediatek-geniezone-out-of-bounds-write-via-race-condition)
- [MediaTek GenieZone out-of-bounds write privilege escalation](https://junglewise.ai/threats/cve-2026-20453-mediatek-geniezone-out-of-bounds-write-privilege-escalation)