CVE-2025-20741
BaseFortify
Publication date: 2025-11-04
Last updated on: 2025-11-05
Assigner: MediaTek, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mediatek | software_development_kit | to 7.6.7.2 (inc) |
| openwrt | openwrt | 19.07.0 |
| openwrt | openwrt | 21.02.0 |
| mediatek | mt6890 | * |
| mediatek | mt7615 | * |
| mediatek | mt7622 | * |
| mediatek | mt7663 | * |
| mediatek | mt7915 | * |
| mediatek | mt7916 | * |
| mediatek | mt7981 | * |
| mediatek | mt7986 | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
Apply the patch identified as WCNCR00434422 provided by the vendor to fix the out of bounds write issue in the wlan AP driver. Since exploitation requires local access with System privilege, ensure that only trusted users have such privileges and monitor for any unusual local activity.
How can this vulnerability impact me? :
If exploited, this vulnerability could allow a malicious actor with existing System privileges to escalate their privileges further, potentially gaining more control over the affected system.
Can you explain this vulnerability to me?
This vulnerability is an out of bounds write in the wlan AP driver caused by an incorrect bounds check. It can be exploited locally by a user who already has System privilege to escalate their privileges further. No user interaction is required to exploit this issue.