// For flags

CVE-2020-27274

 

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

Some parsing functions in the affected product do not check the return value of malloc and the thread handling the message is forced to close, which may lead to a denial-of-service condition on the OPC UA Tunneller (versions prior to 6.3.0.8233).

Algunas funciones de análisis en el producto afectado no comprueban el valor de retorno de malloc y el subproceso que maneja el mensaje está obligado a cerrarse, lo que puede conllevar a una condición de denegación de servicio en el OPC UA Tunneller (versiones anteriores a 6.3.0.8233)

*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
  • 2020-10-19 CVE Reserved
  • 2021-01-26 CVE Published
  • 2023-10-12 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-754: Improper Check for Unusual or Exceptional Conditions
CAPEC
References (1)
URL Tag Source
https://us-cert.cisa.gov/ics/advisories/icsa-21-021-03 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
Honeywell
Search vendor "Honeywell"
 Opc Ua Tunneller
Search vendor "Honeywell" for product "Opc Ua Tunneller"
 < 6.3.0.8233
Search vendor "Honeywell" for product "Opc Ua Tunneller" and version " < 6.3.0.8233"
-
Affected