CVE-2019-17662

CVE-2019-17662 Description ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server. The vulnerability exists even when authentication is turned on during the deployment of the VNC server. The password for authentication is stored in cleartext in a file th...

CVE-2019-17662-Exploit

CVE-2019-17662 Description ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server. The vulnerability exists even when authentication is turned on during the deployment of the VNC server. The password for authentication is stored in cleartext in a file th...

CLEANSTART-2022-OJ20825 LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow an attacker to read stack memory and can be abused for information dis...

Security vulnerability affects the libvncserver package. LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak CWE-655 in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure...

CLEANSTART-2026-CI11841 integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format

Security vulnerability affects the qemu package. An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format...

CVE-2023-43826

Apache Guacamole 1.5.3 and older do not consistently ensure that values received from a VNC server will not result in integer overflow. If a user connects to a malicious or compromised VNC server, specially-crafted data could result in memory corruption, possibly allowing arbitrary code to be...

CVE-2026-112519

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Connecting to a malicious VNC server may cause a denial-of-service...

EUVD-2026-110183

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Connecting to a malicious VNC server may cause a denial-of-service...

CVE-2026-112519

An integer overflow vulnerability in Apple macOS (affecting versions prior to Golden Gate 27.2, Sequoia 15.8.2, and Tahoe 26.7.2) was addressed with improved input validation . A remote attacker connecting to a malicious VNC server could trigger a denial-of-service (DoS) condition. The issue is f...

Apple macOS security vulnerabilities

A security vulnerability exists in Apple macOS Golden Gate versions prior to 27.2, macOS Sequoia versions prior to 15.8.2, and macOS Tahoe versions prior to 26.7.2. This vulnerability stems from an integer overflow and may lead to a denial of service when connecting to a malicious VNC server...

PT-2026-125209

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Connecting to a malicious VNC server may cause a denial-of-service...

Apple MacOS: CVE-2026-112519: OS X update for Screen Sharing

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Connecting to a malicious VNC server may cause a denial-of-service...

Astra Linux – vulnerability in libvncserver

A division-by-zero issue has been identified in libvncserver-0.9.12. A malicious client could exploit this flaw to send a specially crafted message; upon processing by the VNC server, this would trigger a floating-point exception, leading to a denial of service...

VNC Server Code Execution

The vulnerability in the XRDP VNC server component is related to a buffer overflow in dynamic memory. Exploitation of this vulnerability may allow a remote attacker to execute arbitrary code or cause a denial of service...

XRDP VNC Server Disclosure DoS

The vulnerability in the XRDP VNC server component is related to an integer overflow. Exploitation of this vulnerability may allow a remote attacker to disclose protected information or cause a denial of service...

AlmaLinux 9.2 [TuxCare] Security Update: qemu-guest-agent / qemu-img / qemu-kvm / qemu-kvm-audio-pa / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1777042213)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1777042213 advisory. - A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an...

CVE-2026-79680

A flaw was found in the Qt VNC Server module. A remote attacker, by using a specially modified VNC client that violates the Remote Framebuffer RFB protocol, can bypass the password authentication mechanism. This allows the attacker to gain unauthorized remote access to the shared application,...

CVE-2026-79680

Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module. An attacker using a specially modified VNC client that violates the RFB protocol can bypass Qt VNC Server's password authentication and gain unauthorized remote access to the shared...

CVE-2026-79680

The Qt VNC Server module contains an authentication bypass vulnerability within its password authentication mechanism. An attacker utilizing a specially modified VNC client that violates the RFB protocol can bypass password requirements to gain unauthorized remote access to the shared application...

CVE-2026-79680 Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module

Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module. An attacker using a specially modified VNC client that violates the RFB protocol can bypass Qt VNC Server's password authentication and gain unauthorized remote access to the shared...

EUVD-2026-85846

Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module. An attacker using a specially modified VNC client that violates the RFB protocol can bypass Qt VNC Server's password authentication and gain unauthorized remote access to the shared...