An uncontrolled search path element vulnerability in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to execute arbitrary code with SYSTEM privileges. DynamicLibrary::init() (and ThemeLib) load screenhooks32.dll / screenhooks64.dll with LoadLi...
Vendor
GlavSoft vulnerabilities
6 published CVES affecting GlavSoft, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 6
- Critical
- 1
- High
- 3
- Medium
- 2
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Products
Latest GlavSoft CVEs
Newest publication first
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HighCVSS 7.8 EPSS 0.14%
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MediumCVSS 6.1 EPSS 0.11%
An integer underflow in WinCursorShapeUtils::trimTransparent() in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to crash the server, and potentially read out-of-bounds memory, by causing a cursor shape with a width or height of zero to be pr...
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MediumCVSS 5.9 EPSS 0.31%
A NULL pointer dereference vulnerability in the Win8ScreenDriver component of GlavSoft TightVNC Server for Windows before 2.8.88 allows an attacker to crash the server, causing a denial of service. When re-initialization of the DXGI Desktop Duplication driver fails in applyNewScr...
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CVE-2026-107612 World-accessible IPC shared memory with predictable name in TightVNC Server
PublishedHighCVSS 7.8 EPSS 0.10%Incorrect permission assignment in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to read or overwrite the inter-process communication handles used between the TightVNC service and its desktop server process. The named shared memory segment i...
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HighCVSS 7.1 EPSS 0.24%
An out-of-bounds read vulnerability in the ZRLE decoder of GlavSoft TightVNC Viewer for Windows before 2.8.88 allows a malicious or compromised VNC server to read heap memory beyond the palette allocation and crash the viewer by sending ZRLE-encoded tiles whose palette indices ex...
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CVE-2021-42785 Buffer Overflow in tvnviewer.exe via Crafted Packet in TightVNC Viewer 2.8.59
PublishedCriticalCVSS 9.8 EPSS 2.3%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.
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.