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CVE-2026-15419— CP210x Driver Memory Corruption results in Arbitrary Code Execution

Quick assessment

Affected
Silicon Labs silabser.sys driver
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 CP210x 设备使用的 silabser.sys 驱动程序（v11.5.0 及更早版本）中，本地非特权用户若使用存在恶意构造的设备，可通过畸形数据包破坏内核池内存，从而以提权后的权限实现任意代码执行。

CVSS 7.0 · High

Possible ATT&CK Techniques 1 AI

T1059.003 · Windows Command Shell
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I. Basic Information for CVE-2026-15419

Vulnerability Information
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Vulnerability Title
CP210x Driver Memory Corruption results in Arbitrary Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
In the silabser.sys driver for CP210x devices v11.5.0 and earlier, a local unprivileged user with a malicious device can use malformed packets to corrupt kernel pool memory, resulting in arbitrary code execution with escalated privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Silicon Labs silabser.sys driver 0 ~ 11.5.0 -

II. Public POCs for CVE-2026-15419

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III. Intelligence Information for CVE-2026-15419

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Vendor Pages for CVE-2026-15419 (1)

Same Patch Batch · Silicon Labs · 2026-09-10 · 3 CVEs total

CVE-2026-15417 6.9 MEDIUM CP210x Denial of Service
CVE-2026-15418 2.4 LOW CP210x Memory Leakage

IV. Related Vulnerabilities

Same product: silabser.sys driver
Same vendor: Silicon Labs
Same weakness: CWE-121

V. Comments for CVE-2026-15419

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