CVE-2021-40142

Katalog CVE

CVSS 7.5 · High EPSS 2,6%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada opcfoundation local discover server, siemens simatic process historian opc ua server firmware +5 lainnya. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

In OPC Foundation Local Discovery Server (LDS) before 1.04.402.463, remote attackers can cause a denial of service (DoS) by sending carefully crafted messages that lead to Access of a Memory Location After the End of a Buffer.

Rincian

Terbit di NVD

27 Agustus 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
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-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

EPSS (30 hari)

2,6% peluang dieksploitasi; lebih tinggi dari 84,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-40142.pdf patch · advisory vendor
• https://opcfoundation.org/security-bulletins/ advisory vendor
• https://cert-portal.siemens.com/productcert/pdf/ssa-321292.pdf patch · advisory pihak ketiga