CoreCVE
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HIGH

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)

Published Sep 14, 2021

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 products

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-120

Classic Buffer Overflow

References (2)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner siemens
Published Sep 14, 2021
Updated Aug 3, 2024
Reserved May 28, 2021
Link CVE-2021-33720
CISA Vulnrichment
Updated n/a
NVD
Status Modified
Modified Jun 17, 2026
Link CVE-2021-33720
Red Hat
Severity n/a
Public date n/a
Links CVE-2021-33720
ENISA EUVD
Assigner siemens
Published Sep 14, 2021
Updated Aug 3, 2024
Exploited since n/a
Link EUVD-2021-20397
EUVD-2021-20397