JLSEC-2026-369 A vulnerability has been found in Cesanta Mongoose up to 7.20

A vulnerability has been found in Cesanta Mongoose up to 7.20. This affects the function mgtlsrecvcert of the file mongoose.c of the component TLS 1.3 Handler. Such manipulation of the argument pubkey leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been...

PT-2026-29692

Name of the Vulnerable Software and Affected Versions Cesanta Mongoose versions up to 7.20 Description A flaw exists in the TLS 1.3 Handler component of Cesanta Mongoose, specifically within the mg tls recv cert function in the mongoose.c file. Manipulation of the pubkey argument can lead to a...