// For flags

CVE-2021-27432

 

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

OPC Foundation UA .NET Standard versions prior to 1.4.365.48 and OPC UA .NET Legacy are vulnerable to an uncontrolled recursion, which may allow an attacker to trigger a stack overflow.

OPC Foundation UA ??.NET Standard versiones anteriores a 1.4.365.48 y OPC UA .NET Legacy, son vulnerables a una recursividad no controlada, que puede permitir a un atacante desencadenar un desbordamiento de pila

*Credits: N/A
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
  • 2021-02-19 CVE Reserved
  • 2021-05-20 CVE Published
  • 2024-02-03 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-674: Uncontrolled Recursion
CAPEC
References (1)
URL Tag Source
https://us-cert.cisa.gov/ics/advisories/icsa-21-133-03 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
Opcfoundation
Search vendor "Opcfoundation"
 Ua-.net-legacy
Search vendor "Opcfoundation" for product "Ua-.net-legacy"
--
Affected
Opcfoundation
Search vendor "Opcfoundation"
 Ua .net Standard Stack
Search vendor "Opcfoundation" for product "Ua .net Standard Stack"
 < 1.4.365.48
Search vendor "Opcfoundation" for product "Ua .net Standard Stack" and version " < 1.4.365.48"
-
Affected