CVE-2020-12526

Katalog CVE

CVSS 5.3 · Medium EPSS 0,96%

Kerentanan Improper Input Validation pada beckhoff ipc diagnostics ua server, beckhoff tf6100 +1 lainnya. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

TwinCAT OPC UA Server in versions up to 2.3.0.12 and IPC Diagnostics UA Server in versions up to 3.1.0.1 from Beckhoff Automation GmbH & Co. KG are vulnerable to denial of service attacks. The attacker needs to send several specifically crafted requests to the running OPC UA server. After some of these requests the OPC UA server is no longer responsive to any client. This is without effect to the real-time functionality of IPCs.

Rincian

Terbit di NVD

13 Mei 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation

EPSS (30 hari)

0,96% peluang dieksploitasi; lebih tinggi dari 60,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2021-001.pdf advisory vendor
• https://cert.vde.com/en-us/advisories/vde-2020-051 advisory pihak ketiga