Cesanta Mongoose
56 CVEs affecting Cesanta Mongoose. Latest disclosed: 2026-08-20. Critical: 20, High: 13.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2022-25299 | Critical | 9.8 | 2022-02-18 | This affects the package cesanta/mongoose before 7.6. The unsafe handling of file names during upload using mg_http_upload() method may enable attackers to wri… |
CVE-2020-25756 | Critical | 9.8 | 2020-09-18 | A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can… |
CVE-2019-19307 | Critical | 9.8 | 2019-11-26 | An integer overflow in parse_mqtt in mongoose.c in Cesanta Mongoose 6.16 allows an attacker to achieve remote DoS (infinite loop), or possibly cause an out-of-… |
CVE-2019-12951 | Critical | 9.8 | 2019-06-24 | An issue was discovered in Mongoose before 6.15. The parse_mqtt() function in mg_mqtt.c has a critical heap-based buffer overflow. |
CVE-2018-20356 | Critical | 9.8 | 2019-06-10 | An invalid read of 8 bytes due to a use-after-free vulnerability in the mg_http_free_proto_data_cgi function call in mongoose.c in Cesanta Mongoose Embedded We… |
CVE-2018-20355 | Critical | 9.8 | 2019-06-10 | An invalid write of 8 bytes due to a use-after-free vulnerability in the mg_http_free_proto_data_cgi function call in mongoose.c in Cesanta Mongoose Embedded W… |
CVE-2018-20354 | Critical | 9.8 | 2019-06-10 | An invalid read of 8 bytes due to a use-after-free vulnerability during a "return" in the mg_http_get_proto_data function in mongoose.c in Cesanta Mongoose Emb… |
CVE-2018-20353 | Critical | 9.8 | 2019-06-10 | An invalid read of 8 bytes due to a use-after-free vulnerability during a "NULL test" in the mg_http_get_proto_data function in mongoose.c in Cesanta Mongoose… |
CVE-2017-2922 | Critical | 9.8 | 2017-11-07 | An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of Cesanta Mongoose 6.8. A specially crafted websocket packet ca… |
CVE-2017-2921 | Critical | 9.8 | 2017-11-07 | An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of Cesanta Mongoose 6.8. A specially crafted websocket packet ca… |
CVE-2017-2894 | Critical | 9.8 | 2017-11-07 | An exploitable stack buffer overflow vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. A specially crafted MQTT SUBSCRIBE… |
CVE-2017-2892 | Critical | 9.8 | 2017-11-07 | An exploitable arbitrary memory read vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. A specially crafted MQTT packet can… |
CVE-2017-2891 | Critical | 9.8 | 2017-11-07 | An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target c… |
CVE-2026-73257 | Critical | 9.1 | 2026-08-20 | Mongoose is an embedded web server and network library. Priro to version 7.22, a remote unauthenticated attacker can send an HTTP request containing both Conte… |
CVE-2026-73256 | Critical | 9.1 | 2026-08-20 | Mongoose is an embedded web server and network library. Prior to 7.22, a remote unauthenticated attacker can exploit an HTTP/1.0 reverse-proxy deployment by se… |
CVE-2021-26530 | Critical | 9.1 | 2021-02-08 | The mg_tls_init function in Cesanta Mongoose HTTPS server 7.0 (compiled with OpenSSL support) is vulnerable to remote OOB write attack via connection request a… |
CVE-2021-26529 | Critical | 9.1 | 2021-02-08 | The mg_tls_init function in Cesanta Mongoose HTTPS server 7.0 and 6.7-6.18 (compiled with mbedTLS support) is vulnerable to remote OOB write attack via connect… |
CVE-2021-26528 | Critical | 9.1 | 2021-02-08 | The mg_http_serve_file function in Cesanta Mongoose HTTP server 7.0 is vulnerable to remote OOB write attack via connection request after exhausting memory poo… |
CVE-2018-18765 | Critical | 9.1 | 2018-10-29 | An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-rea… |
CVE-2018-18764 | Critical | 9.1 | 2018-10-29 | An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-rea… |