CVEvulnerability

CVE-2021-33720

7.5 HIGH Published 2021-09-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-09-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-120

Description

A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP100 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP300 (All versions < V8.80). Specially crafted packets sent to port 4443/tcp could cause a Denial-of-Service condition.

Affected configurations

• siemens siprotec 5 with cpu variant cp050 (< 8.80) • siemens siprotec 5 with cpu variant cp100 (< 8.80) • siemens siprotec 5 with cpu variant cp300 (< 8.80)

Related

Weakness · CWE (1)

  • CWE-120 Buffer Copy without Checking Size of Input weakness

References