CVE-2026-20473: CWE-416 Use After Free in MediaTek, Inc. MediaTek chipset
CVE-2026-20473 is a use-after-free vulnerability in the display component of MediaTek chipsets. It can cause memory corruption and potentially allow local privilege escalation if the attacker already has System privileges. Exploitation does not require user interaction. Multiple MediaTek chipset models are affected. No official patch or remediation level has been confirmed yet.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the display functionality of various MediaTek chipsets, leading to possible memory corruption. An attacker with existing System privileges could exploit this flaw to escalate privileges locally. The issue does not require user interaction for exploitation. The affected chipsets include specific models such as MT6991, MT6993, MT8126, MT8171, MT8188, MT8189, MT8367, MT8668, MT8676, MT8678, MT8766, MT8768, MT8781, MT8786, MT8799, and MT8910. There is no CVSS score or vendor advisory indicating a patch or mitigation status at this time.
Potential Impact
Successful exploitation could lead to local escalation of privilege through memory corruption caused by use-after-free in the display component. However, the attacker must already have System-level privileges to exploit this vulnerability. No evidence of exploitation in the wild is currently known.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, no specific mitigation steps are provided.
CVE-2026-20473: CWE-416 Use After Free in MediaTek, Inc. MediaTek chipset
Description
CVE-2026-20473 is a use-after-free vulnerability in the display component of MediaTek chipsets. It can cause memory corruption and potentially allow local privilege escalation if the attacker already has System privileges. Exploitation does not require user interaction. Multiple MediaTek chipset models are affected. No official patch or remediation level has been confirmed yet.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the display functionality of various MediaTek chipsets, leading to possible memory corruption. An attacker with existing System privileges could exploit this flaw to escalate privileges locally. The issue does not require user interaction for exploitation. The affected chipsets include specific models such as MT6991, MT6993, MT8126, MT8171, MT8188, MT8189, MT8367, MT8668, MT8676, MT8678, MT8766, MT8768, MT8781, MT8786, MT8799, and MT8910. There is no CVSS score or vendor advisory indicating a patch or mitigation status at this time.
Potential Impact
Successful exploitation could lead to local escalation of privilege through memory corruption caused by use-after-free in the display component. However, the attacker must already have System-level privileges to exploit this vulnerability. No evidence of exploitation in the wild is currently known.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, no specific mitigation steps are provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- MediaTek
- Date Reserved
- 2025-11-03T01:30:59.016Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a700181bf32cb7a34d5c9f7
Added to database: 08/03/2026, 02:48:33 UTC
Last enriched: 08/03/2026, 03:23:49 UTC
Last updated: 08/03/2026, 03:23:49 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.