CVE-2021-42785
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductTightvnc
PublishedNov 23, 2021
First seenNov 23, 2021
Weakness typeCWE-120CWE-120
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tightvnc tightvnc | v ≤ 2.8.59 | — |
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