CVE-2026-20477 — MEDIUM (6.0)

Vulnerability Description

In display, there is a possible out of bounds write 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: ALPS11009963; Issue ID: MSV-7658.

CVSS Score

6.0

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-787

References

https://www.mediatek.com/product-security-bulletin/August-2026

FAQ

What is CVE-2026-20477?

CVE-2026-20477 is a vulnerability with a CVSS score of 6.0 (MEDIUM). In display, there is a possible out of bounds write 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...

How severe is CVE-2026-20477?

CVE-2026-20477 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20477?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.