CVE-2021-42577

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.

Se ha detectado un problema en Softing OPC UA C++ SDK versiones anteriores a 5.70. Un paquete de cancelación de mensajes OPC/UA malformado hace que el cliente sea bloqueado con una desreferencia de puntero NULL

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-10-18 CVE Reserved
2022-03-11 CVE Published
2024-08-04 CVE Updated
2024-11-24 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-42577.pdf	2022-03-18
https://softing.com	2022-03-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Softing Search vendor "Softing"		Datafeed Opc Suite Search vendor "Softing" for product "Datafeed Opc Suite"				<= 5.19 Search vendor "Softing" for product "Datafeed Opc Suite" and version " <= 5.19"		-		Affected
Softing Search vendor "Softing"		Opc Ua C\+\+ Software Development Kit Search vendor "Softing" for product "Opc Ua C\+\+ Software Development Kit"				< 5.70.0 Search vendor "Softing" for product "Opc Ua C\+\+ Software Development Kit" and version " < 5.70.0"		-		Affected
Softing Search vendor "Softing"		Secure Integration Server Search vendor "Softing" for product "Secure Integration Server"				<= 1.22 Search vendor "Softing" for product "Secure Integration Server" and version " <= 1.22"		-		Affected