CVE-2026-20511
Quick assessment
Affected
MediaTek, Inc. MediaTek chipset
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 SurfaceFlinger 中，由于存在“释放后使用”（use after free）的问题，可能导致内存损坏。如果恶意行为者已经获得 System 权限，这可能引发本地权限提升。利用此漏洞无需用户交互。补丁 ID：ALPS11123860；问题 ID：MSV-8890。
Possible ATT&CK Techniques 2 AI
T1068 · Exploitation for Privilege Escalation T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-20511
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In SurfaceFlinger, there is a possible memory corruption due to use after free. 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: ALPS11123860; Issue ID: MSV-8890.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset | MT6858 | - |
|
II. Public POCs for CVE-2026-20511
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-20511 (1)
Same Patch Batch · MediaTek, Inc. · 2026-09-07 · 18 CVEs total
| CVE-2026-20508 | Power HAL 类型混淆致本地提权漏洞 | |
| CVE-2026-20500 | Modem 输入验证不当致本地拒绝服务 | |
| CVE-2026-20501 | vdec堆缓冲区溢出：本地提权 | |
| CVE-2026-20502 | vdec 缓冲区越界写导致本地提权 | |
| CVE-2026-20503 | Modem：UE连接攻击者基站致远程拒绝服务 | |
| CVE-2026-20504 | Modem缺失边界检查导致远程拒绝服务 | |
| CVE-2026-20516 | MiracastService 权限提升漏洞 | |
| CVE-2026-20506 | Audio HAL UAF 本地权限提升漏洞 | |
| CVE-2026-20507 | Audio HAL：系统权限下use after free提权漏洞 | |
| CVE-2026-20518 | geniezone 越界检查缺失致信息泄露 | |
| CVE-2026-20509 | Power HAL越界写导致本地提权 | |
| CVE-2026-20510 | 相机中间件双重重用致本地提权 | |
| CVE-2026-20512 | Audio HAL权限提升漏洞 | |
| CVE-2026-20513 | Audio HAL信息泄露：System权限下本地信息暴露 | |
| CVE-2026-20514 | Audio HAL 信息泄露：缺少权限检查 | |
| CVE-2026-20515 | GPU系统因释放后使用致崩溃并泄露信息 | |
| CVE-2026-20517 | GenieZone 系统权限提升漏洞（UAF） |
IV. Related Vulnerabilities
V. Comments for CVE-2026-20511
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