CVE-2021-46523

Name of the Vulnerable Software and Affected Versions Cesanta MJS version 2.20.0

Description A heap buffer overflow issue was discovered in Cesanta MJS via the to json or debug function at mjs/src/mjs json.c. This issue can be exploited, potentially leading to unintended consequences.

Recommendations For Cesanta MJS version 2.20.0, consider disabling the to json or debug function as a temporary workaround until a patch is available. Restrict access to the mjs/src/mjs json.c module to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.