CVE-2026-20464 — MEDIUM (6.5)

Vulnerability Description

In hevc decoder, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11104718; Issue ID: MSV-8297.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

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-2026-20464?

CVE-2026-20464 is a vulnerability with a CVSS score of 6.5 (MEDIUM). In hevc decoder, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege if a malicious actor has already obtained the System privilege. U...

How severe is CVE-2026-20464?

CVE-2026-20464 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20464?

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