CVE-2025-20718 Details
Description
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: WCNCR00419945; Issue ID: MSV-3581.
A stack overflow vulnerability has been identified in the WLAN access point driver of certain MediaTek chipsets. This issue arises from an incorrect bounds check, leading to a possible out-of-bounds write. Exploitation of this vulnerability could allow local escalation of privileges, although it requires user execution privileges. Notably, user interaction is not needed for exploitation.
MediaTek has issued a patch for this vulnerability, which can be applied by device OEMs. Instructions for accessing the patch are available through the MediaTek Product Security Bulletin.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 15, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://corp.mediatek.com/product-security-bulletin/October-2025 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
| CWE-121 | Stack-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mediatek software development kit | <= 7.6.7.2 |
CPE
Remediation
| |
| openwrt openwrt | 19.07.0 - 21.02.0 - |
CPE
Remediation
| |
| mediatek mt6890 | All versions |
CPE
Remediation
| |
| mediatek mt7615 | All versions |
CPE
Remediation
| |
| mediatek mt7622 | All versions |
CPE
Remediation
| |
| mediatek mt7663 | All versions |
CPE
Remediation
| |
| mediatek mt7915 | All versions |
CPE
Remediation
| |
| mediatek mt7916 | All versions |
CPE
Remediation
| |
| mediatek mt7981 | All versions |
CPE
Remediation
| |
| mediatek mt7986 | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2025 | Initial Analysis | [email protected] |
| Oct 14, 2025 | CVE Modified | CISA-ADP |
| Oct 14, 2025 | New CVE Received | [email protected] |