CVE-2014-6053: The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier do...

Security readout for executives and security teams

CVE-2014-6053 is a denial-of-service issue in LibVNCServer 0.9.9 and earlier. A remote attacker could send oversized clipboard text data and cause excessive memory use or crash the VNC server process. The impact is service availability, not documented code execution, based on the provided sources. Systems are most likely exposed where LibVNCServer 0.9.9 or earlier, or software embedding it, accepts remote VNC client connections. Distribution advisories indicate downstream impact across packaged software, but the provided affected-product metadata is incomplete. Treat this as a service availability risk for externally reachable or business-critical VNC services. Prioritize patching exposed remote access systems and embedded uses, while recognizing the provided evidence does not indicate active exploitation. Mitigation focus: Apply upstream or distribution security updates for LibVNCServer-related packages.; Check vendor advisories for products bundling LibVNCServer.; Confirm the upstream fix or equivalent backport is present..

Prepared

Jun 14, 2026, 05:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.