CVE-2025-56234

Katalog CVE

CVSS 7.5 · High EPSS 0,34%

Kerentanan Uncontrolled Resource Consumption. Skor CVSS 3.1 7.5 (High) menurut CISA ADP.

Deskripsi (NVD)

AT_NA2000 from Nanda Automation Technology vendor has a denial-of-service vulnerability. For the processing of TCP RST packets, PLC AT_NA2000 has a wide acceptable range of sequence numbers. It does not require the sequence number to exactly match the next expected sequence value, just to be within the current receive window, which violates RFC5961. This flaw allows attackers to send multiple random TCP RST packets to hit the acceptable range of sequence numbers, thereby interrupting normal connections and causing a denial-of-service attack.

Rincian

Terbit di NVD

29 September 2025

Terakhir diubah

17 Juni 2026

Status NVD

Deferred

CVSS 3.1

7.5 (High), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-400: Uncontrolled Resource Consumption

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 25,0% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/zq-star/TCP-Vuln-Report/blob/master/PLC/AT-NA2000/tcp-rst/at-na2000-tcp-rst.md