CVE-2025-40820

Katalog CVE

CVSS 7.5 · High EPSS 0,49%

Kerentanan Improper Verification of Source of a Communication Channel. Skor CVSS 3.1 7.5 (High) menurut siemens.com.

Deskripsi (NVD)

Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values within a broad range. This could allow an unauthenticated remote attacker e.g. to interfere with connection setup, potentially leading to a denial of service. The attack succeeds only if an attacker can inject IP packets with spoofed addresses at precisely timed moments, and it affects only TCP-based services.

Rincian

Terbit di NVD

9 Desember 2025

Terakhir diubah

7 Oktober 2026

Status NVD

Deferred

CVSS 3.1

7.5 (High), sumber siemens.com
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-940: Improper Verification of Source of a Communication Channel

EPSS (30 hari)

0,49% peluang dieksploitasi; lebih tinggi dari 40,4% 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://cert-portal.siemens.com/productcert/html/ssa-915282.html