CVE-2021-27425

HIGH

Cesanta Software Mongoose-OS <2.17.0 - Memory Corruption

Title source: llm

Description

Cesanta Software Mongoose-OS v2.17.0 is vulnerable to integer wrap-around in function mm_malloc. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

References (2)

Core 2

Core References

Third Party Advisory, US Government Resource x_refsource_confirm

https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

Product, Third Party Advisory x_refsource_confirm

https://github.com/cesanta/mongoose-os

Scores

CVSS v3 7.3

EPSS 0.0146

EPSS Percentile 70.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-190

Status published

Products (1)

cesanta/mongoose_os 2.17.0

Published May 03, 2022

Tracked Since Feb 18, 2026