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CVE-2023-7158— MicroPython objslice.c slice_indices heap-based overflow

Quick assessment

Affected
n/a MicroPython
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MicroPython是MicroPython开源的一个小型的开源Python编程语言解释器。 MicroPython 1.21.0及之前版本存在安全漏洞，该漏洞源于文件objslice.c的函数slice_indices会导致基于堆的缓冲区溢出。

CVSS 7.3 · High EPSS 1.23% · P66

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2023-7158

Vulnerability Information
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Vulnerability Title
MicroPython objslice.c slice_indices heap-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in MicroPython up to 1.21.0. It has been classified as critical. Affected is the function slice_indices of the file objslice.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.22.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-249180.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
MicroPython 安全漏洞
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 1.21.0及之前版本存在安全漏洞，该漏洞源于文件objslice.c的函数slice_indices会导致基于堆的缓冲区溢出。
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

Vendor Product Affected Versions CPE Subscribe
- MicroPython 1.13.0 -

II. Public POCs for CVE-2023-7158

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Qwen3.6-35B-A3B · 7766 chars
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III. Intelligence Information for CVE-2023-7158

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Patches & Fixes for CVE-2023-7158 (2)

Vendor Advisories for CVE-2023-7158 (2)

Mailing List Discussions for CVE-2023-7158 (3)

Other References for CVE-2023-7158 (2)

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Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: MicroPython
Same vendor: n/a
Same weakness: CWE-122

V. Comments for CVE-2023-7158

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