7.5
Élevée
CVE-2026-73261 Mongoose is an embedded web server and network library
Description
Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TCP/IP stack enabled by MG_ENABLE_TCPIP in src/net_builtin.c does not reject a TCP option whose declared opts[1] length exceeds the remaining option bytes. In handle_opt(), a NOP followed by a truncated MSS option causes opts[3] to be read outside the declared options area and used as the low byte of dmss. An unauthenticated remote peer can corrupt the per-connection MSS value so later mg_send() calls transmit truncated or zero-length application payloads while the TCP connection otherwise appears healthy. This issue is fixed in version 7.23.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Mongoose 7.23 | premières → < 7.23 | 7.23 |
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