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I. Basic Information for CVE-2026-1998
Vulnerability Information

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Vulnerability Title
micropython runtime.c mp_import_all memory corruption
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in micropython up to 1.27.0. This vulnerability affects the function mp_import_all of the file py/runtime.c. This manipulation causes memory corruption. The attack needs to be launched locally. The exploit has been published and may be used. Patch name: 570744d06c5ba9dba59b4c3f432ca4f0abd396b6. It is suggested to install a patch to address this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
MicroPython 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MicroPython是MicroPython开源的一个小型的开源Python编程语言解释器。 MicroPython 1.27.0及之前版本存在缓冲区错误漏洞,该漏洞源于对文件py/runtime.c中函数mp_import_all的错误操作,可能导致内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
-micropython 1.0 cpe:2.3:a:micropython:micropython:*:*:*:*:*:*:*:*
II. Public POCs for CVE-2026-1998
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III. Intelligence Information for CVE-2026-1998
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IV. Related Vulnerabilities
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