ZdiVULNRICHMENT:CVE-2023-27336CVE-2023-27336 Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.6 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
28.8%
Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of OPC client certificates. The issue results from dereferencing a NULL pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20508.
CNA Affected
[
{
"vendor": "Softing",
"product": "edgeConnector Siemens",
"versions": [
{
"version": "3.40",
"status": "affected"
}
],
"defaultStatus": "unknown"
}
]Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.6 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
28.8%