Medium severity · published Nov 4, 2025
CVE-2025-20741
In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check
6.7
CVSS
0.2%
EPSS
No
On KEV
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 if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00434422; Issue ID: MSV-3958.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openwrt · Openwrt
19.07.0; 21.02.0 · source: NVD
SD
Software Development Kit · Mediatek
through 7.6.7.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-20741
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-20741
Vendor Advisory
https://corp.mediatek.com/product-security-bulletin/November-2025
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