Section

Advisories

Vendor PSIRT bulletins, CERT notes, CISA and partner-agency alerts, and distribution security notices.

2 matching records.

1. 41
   CERT/CC note CERT/CC 2h ago

   TightVNC and UltraVNC Viewer contains a heap-based buffer overflow

   Overview A heap-based buffer overflow exists in the Tight JPEG decoding component of the TightVNC Windows Viewer version 1.3.10 and affected UltraVNC Windows Viewers. An attacker controlling a malicious VNC server can trigger…

   Fix available CVE-2026-128321 RealVNC / TightVNC Remote access
2. 41
   Ubuntu notice Ubuntu 5h ago

   TigerVNC vulnerability

   It was discovered that the TigerVNC viewer stored TLS certificate exceptions as trusted certificate authorities. A remote attacker could possibly use this issue to impersonate any VNC server after a user had added a certificate…

   Canonical RealVNC / TightVNC Remote access

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