// For flags

CVE-2021-32994

Softing OPC-UA C++ SDK Improper Restriction of Operations within the Bounds of a Memory Buffer

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Softing OPC UA C++ SDK (Software Development Kit) versions from 5.59 to 5.64 exported library functions don't properly validate received extension objects, which may allow an attacker to crash the software by sending a variety of specially crafted packets to access several unexpected memory locations.

Softing OPC UA C++ SDK (Software Development Kit) versiones desde 5.59 hasta 5.64, exportan funciones de biblioteca que no comprueban apropiadamente los objetos de extensión recibidos, lo que puede permitir a un atacante bloquear el software mediante el envío de una variedad de paquetes especialmente diseñados para acceder a varias ubicaciones de memoria no esperadas

*Credits: Eran Jacob of OTORIO reported this vulnerability to CISA.
CVSS Scores
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
  • 2021-05-13 CVE Reserved
  • 2022-04-04 CVE Published
  • 2023-10-26 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (1)
URL Tag Source
https://www.cisa.gov/uscert/ics/advisories/icsa-21-168-02 Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Softing
Search vendor "Softing"
 Opc Ua C\+\+ Software Development Kit
Search vendor "Softing" for product "Opc Ua C\+\+ Software Development Kit"
 >= 5.59.0 < 5.65.0
Search vendor "Softing" for product "Opc Ua C\+\+ Software Development Kit" and version " >= 5.59.0 < 5.65.0"
-
Affected