CVE-2021-33720

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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf	Patch Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp050::::::::
	cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp100::::::::
	cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp300::::::::

History

21 Nov 2024, 06:09

Type	Values Removed	Values Added
References	~~() https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf - Patch, Vendor Advisory~~	() https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf - Patch, Vendor Advisory

Information

Published : 2021-09-14 11:15

Updated : 2024-11-21 06:09

NVD link : CVE-2021-33720

Mitre link : CVE-2021-33720

CVE.ORG link : CVE-2021-33720

JSON object : View

Products Affected

siemens

siprotec_5_with_cpu_variant_cp300
siprotec_5_with_cpu_variant_cp050
siprotec_5_with_cpu_variant_cp100

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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