cvedb.io
CVE-2016-9942
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2016-12-31T18:59:00.180 · Last modified 2026-06-17T00:56:49.050

Summary

Heap-based buffer overflow in ultra.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message with the Ultra type tile, such that the LZO payload decompressed length exceeds what is specified by the tile dimensions.

Affected products

libvncserver_project — libvncserver

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.