Local memory disclosure via incorrect bounds check
Published Jul 8, 2025 · Updated Jul 8, 2025
Out-of-bounds read in MediaTek MT6890 and seven related chipsets allows local users to disclose memory through the WLAN AP driver. The driver applies an incorrect bounds check and reads past the valid buffer boundary, although MediaTek has not disclosed the affected function or input field. User-level execution is required, no user interaction is needed, and the affected software is SDK 7.6.7.2 and earlier or OpenWrt 19.07 and 21.02.
Summary
What happened
Out-of-bounds read in MediaTek MT6890 and seven related chipsets allows local users to disclose memory through the WLAN AP driver. The driver applies an incorrect bounds check and reads past the valid buffer boundary, although MediaTek has not disclosed the affected function or input field. User-level execution is required, no user interaction is needed, and the affected software is SDK 7.6.7.2 and earlier or OpenWrt 19.07 and 21.02.
The record
- CVE
- CVE-2025-20690
- Published
- Jul 8, 2025
- Updated
- Jul 8, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 8, 2025CVE publishedPublication date reported by the CVE source.
- Jul 8, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Technologies
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