| Título | Tomato by Shibby Tomato Firmware 1.28 Out-of-Bounds Read |
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| Descripción | An information disclosure vulnerability exists in usr/sbin/miniupnpd in Tomato by Shibby firmware. In the SUBSCRIBE callback handling path, the daemon stores an attacker-controlled callback URI and later constructs the initial NOTIFY request in a fixed 0x400-byte heap buffer. The code uses the return value of snprintf() as the transmit length without checking whether the formatted length exceeded the allocated buffer size. As a result, a sufficiently long callback path can cause send() to transmit bytes beyond the intended 0x400-byte buffer, disclosing unintended heap memory and adjacent message data to the subscribing client.
The current evidence supports LAN-side unauthenticated information disclosure. The callback host is constrained to the requester's own IPv4 address, so the supported impact is memory disclosure back to the subscriber-controlled listener, not arbitrary SSRF. |
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| Fuente | ⚠️ https://gitee.com/Fengyi-Wang/CVE/issues/IJD8SS |
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| Usuario | Anonymous User |
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| Sumisión | 2026-05-02 18:41 (hace 1 mes) |
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| Moderación | 2026-05-29 10:33 (27 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 367154 [Shibby Tomato 1.28 SUBSCRIBE Call usr/sbin/miniupnpd send escalada de privilegios] |
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| Puntos | 20 |
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