Executive Summary

Informations
Name CVE-2021-41380 First vendor Publication 2021-09-17
Vendor Cve Last vendor Modification 2024-03-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

RealVNC Viewer 6.21.406 allows remote VNC servers to cause a denial of service (application crash) via crafted RFB protocol data. NOTE: It is asserted that this issue requires social engineering a user into connecting to a fake VNC Server. The VNC Viewer application they are using will then hang, until terminated, but no memory leak occurs - the resources are freed once the hung process is terminated and the resource usage is constant during the hang. Only the process that is connected to the fake Server is affected. This is an application bug, not a security issue

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41380

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

Source Url
MISC https://gist.github.com/totaam/a90f2bb40f5b693ccec0ae903d021b03

Alert History

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Date Informations
2024-03-21 09:28:23
  • Multiple Updates
2023-11-07 21:33:58
  • Multiple Updates
2021-09-29 00:22:53
  • Multiple Updates
2021-09-24 21:23:12
  • Multiple Updates
2021-09-20 17:22:51
  • Multiple Updates
2021-09-18 00:22:53
  • First insertion