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MEDIUM · 6.7

CVE-2026-20436

In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System pri...

Vulnerability Description

In wlan STA driver, there is a possible escalation of privilege due to a missing 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: WCNCR00473802; Issue ID: MSV-5970.

CVSS Score

6.7

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MediatekNbiot Sdk<= 3.8
MediatekMt7902-
MediatekMt7920-
MediatekMt7921-
MediatekMt7922-
MediatekMt7925-
MediatekMt7927-
MediatekMt8696-

Related Weaknesses (CWE)

CWE-120

References

FAQ

What is CVE-2026-20436?

CVE-2026-20436 is a vulnerability with a CVSS score of 6.7 (MEDIUM). In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System pri...

How severe is CVE-2026-20436?

CVE-2026-20436 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20436?

Check the references section above for vendor advisories and patch information. Affected products include: Mediatek Nbiot Sdk, Mediatek Mt7902, Mediatek Mt7920, Mediatek Mt7921, Mediatek Mt7922.