CVE-2021-42785

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published11/23/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

tightvnc:tightvnc

Weaknesses (CWE)

CWE-120CWE-120

References

https://www.tightvnc.com/whatsnew.php(cve_disclosure@tech.gov.sg)

https://www.tightvnc.com/whatsnew.php(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.