CVE-2026-20572 MediaTek, Inc. CVE debrief

Who should care

Defenders responsible for systems with System privilege access should assess exposure and prioritize patching to prevent potential local escalation of privilege. This includes operators, platform administrators, vulnerability management teams, and security teams who manage systems that may be affected by this vulnerability.

Why it matters

CVE-2026-20572 is a possible out of bounds write due to an integer overflow in adsp. Defenders responsible for systems with System privilege access should assess exposure and prioritize patching to prevent potential local escalation of privilege.

• Local escalation of privilege possible if System privilege is already obtained
• No user interaction required for exploitation
• Patching required to prevent potential exploitation

Technical summary

The vulnerability is caused by an integer overflow in adsp, which could lead to a possible out of bounds write. This could allow a malicious actor with System privilege to escalate privileges locally. User interaction is not required for exploitation. The affected product is adsp, and the vulnerability has a high impact on systems with System privilege access. Defenders should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Applying patch ALPS11431442 is recommended to prevent potential exploitation.

Defensive priority

Assess exposure and prioritize patching for systems with System privilege access

Recommended defensive actions

• Assess exposure and prioritize patching for systems with System privilege access
• Review and apply patch ALPS11431442
• Monitor for potential exploitation attempts
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. The vendor, Mediatek, has provided a security bulletin with patch information. Defenders should verify the affected scope, severity, and vendor guidance. The CVE Program record and NVD detail page offer additional context, but further verification is necessary to ensure accurate exposure assessment and remediation planning.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.