| ID |
CVE-2026-54410
|
| Sažetak |
nanoMODBUS through v1.23.0 contains an off-by-one buffer overflow in the recv_msg_header() function of the Modbus/TCP server that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of the 260-byte receive buffer by sending a crafted MBAP frame whose Length field is set to 255. The overflow corrupts the adjacent buffer-index field of the nanoMODBUS state structure, resulting in denial of service through invalid memory accesses and, on bare-metal and RTOS targets without memory protection, one-byte information disclosure and writes to unintended register addresses on the Write Multiple Registers (FC16) handler path. |
| Reference |
|
| CVSS |
| Base: | 9.0 |
| Impact: | 8.5 |
| Exploitability: | 10.0 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| PARTIAL |
PARTIAL |
COMPLETE |
|
| CVSS vektor |
AV:N/AC:L/Au:N/C:P/I:P/A:C |
| Zadnje važnije ažuriranje |
14-06-2026 - 18:17 |
| Objavljeno |
14-06-2026 - 18:17 |
