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CVE-2026-15418— CP210x Memory Leakage

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 设备的 silabser.sys 驱动程序中，版本 11.5.0 及更早版本存在一个漏洞：本地非特权用户可利用恶意设备通过构造格式异常的报文，泄露最多 145 字节的未初始化内核池内存。该漏洞影响 Windows 10 及更早版本。

CVSS 2.4 · Low
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I. Basic Information for CVE-2026-15418

Vulnerability Information
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Vulnerability Title
CP210x Memory Leakage
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 leak up to 145 bytes of uninitialized kernel pool memory. This vulnerability affects Windows 10 and earlier.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
长度参数不一致性处理不恰当
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-2026-15418

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III. Intelligence Information for CVE-2026-15418

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Vendor Pages for CVE-2026-15418 (1)

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

CVE-2026-15419 7.0 HIGH CP210x Driver Memory Corruption results in Arbitrary Code Execution
CVE-2026-15417 6.9 MEDIUM CP210x Denial of Service

IV. Related Vulnerabilities

Same product: silabser.sys driver
Same vendor: Silicon Labs
Same weakness: CWE-130

V. Comments for CVE-2026-15418

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