# CVE-2025-20733: In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local…

Source: https://junglewise.ai/threats/cve-2025-20733-in-wlan-ap-driver-there-is-a-possible-out-of-bounds-write-due-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-04  
License: CC BY 4.0 with a link back

CVE-2025-20733 · Severity: high · CVSS 7.8 · Published 2025-11-04

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00441509; Issue ID: MSV-4138.

Technologies: [MediaTek Mt6890](https://junglewise.ai/threats/technologies/mt6890), [MediaTek Mt7615](https://junglewise.ai/threats/technologies/mt7615), [MediaTek Mt7622](https://junglewise.ai/threats/technologies/mt7622), [MediaTek Mt7663](https://junglewise.ai/threats/technologies/mt7663), [MediaTek Mt7915](https://junglewise.ai/threats/technologies/mt7915), [MediaTek Mt7916](https://junglewise.ai/threats/technologies/mt7916), [MediaTek Mt7981](https://junglewise.ai/threats/technologies/mt7981), [MediaTek Mt7986](https://junglewise.ai/threats/technologies/mt7986), [MediaTek Software Development Kit](https://junglewise.ai/threats/technologies/software-development-kit), [OpenWrt](https://junglewise.ai/threats/technologies/openwrt). Vendors: [MediaTek](https://junglewise.ai/threats/vendors/mediatek), [OpenWrt](https://junglewise.ai/threats/vendors/openwrt).

## Quick answers

**Is CVE-2025-20733 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-20733 being exploited in the wild.

**How severe is CVE-2025-20733?** High severity, with a CVSS score of 7.8, published 4 November 2025.

**Which products and versions are affected?** MediaTek Mt6890, MediaTek Mt7615, MediaTek Mt7622, MediaTek Mt7663 and 6 more. The advisory does not name versions.

**Is there a fix for CVE-2025-20733?** 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.

**Am I affected by CVE-2025-20733?** Check whether you run MediaTek Mt6890, MediaTek Mt7615, MediaTek Mt7622 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.

## Affected products

- MediaTek Mt6890
- MediaTek Mt7615
- MediaTek Mt7622
- MediaTek Mt7663
- MediaTek Mt7915
- MediaTek Mt7916
- MediaTek Mt7981
- MediaTek Mt7986
- MediaTek Software Development Kit
- OpenWrt

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- [MediaTek Modem out-of-bounds read due to missing permission check](https://junglewise.ai/threats/cve-2026-20538-in-modem-there-is-a-possible-out-of-bounds-read-due-to-a-missing)