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nodemcu-firmware

nodemcu before v3.0.0-release_20240225 was discovered to contain an integer overflow via the getnum function at /modules/struct.c.

CVE-2024-36671 is an integer overflow vulnerability identified in the NodeMCU firmware before version v3.0.0-release_20240225. The flaw resides in the getnum function located in the /modules/struct.c source file. Integer overflow vulnerabilities occur when an arithmetic operation attempts to create a numeric value that exceeds the maximum size the data type can hold, causing wraparound and potentially leading to memory corruption. In this case, the overflow can be triggered remotely without authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). The vulnerability impacts confidentiality, integrity, and availability (C:H/I:H/A:H), meaning an attacker could execute arbitrary code, cause denial of service, or extract sensitive information. NodeMCU is an open-source firmware and development kit widely used for IoT devices based on the ESP8266 and ESP32 microcontrollers. These devices are commonly embedded in smart home products, industrial sensors, and other connected systems. The critical CVSS score of 9.8 reflects the high risk posed by this vulnerability due to its ease of exploitation and broad impact. No public exploits have been reported yet, but the vulnerability's nature suggests that exploitation could lead to complete device compromise. The lack of patch links in the provided data suggests that users should upgrade to the fixed release version v3.0.0-release_20240225 or later once available. The CWE-190 classification confirms the issue as an integer overflow, a well-known class of vulnerabilities that can lead to buffer overflows or memory corruption if not properly handled.

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CVE-2024-36671: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-36671: n/a

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