CVE-2021-42785

Buffer Overflow in tvnviewer.exe via Crafted Packet in TightVNC Viewer 2.8.59

EPSS 2.3%CWE-120

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 2.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

23 Nov 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

GlavSoft LLC · TightVNC Viewer

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References

https://www.tightvnc.com/whatsnew.php