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CVE-2021-42785 Detail

Description

Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://www.tightvnc.com/whatsnew.php Release Notes  Vendor Advisory 
https://www.tightvnc.com/whatsnew.php Release Notes  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') cwe source acceptance level NIST   Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-42785
NVD Published Date:
11/23/2021
NVD Last Modified:
11/21/2024
Source:
Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)