Vendor

    Uvnc

    41 known vulnerabilities in products by Uvnc, 0 of them actively exploited (CISA KEV).

    Key figures

    41

    Vulnerabilities

    0

    Actively exploited (KEV)

    0

    Used by ransomware

    17

    Critical

    Vulnerabilities

    Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.

    Vulnerabilities in Uvnc
    CriticalCVE-2026-7840

    UltraVNC repeater HTTP server global buffer overflow via long URI (pre-auth RCE)

    also in 1 other product

    9.8
    CriticalCVE-2019-8274

    Kaspersky Lab UltraVNC: Heap-based Buffer Overflow

    also in 4 other products

    9.8
    CriticalCVE-2019-8273

    Kaspersky Lab UltraVNC: Heap-based Buffer Overflow

    also in 4 other products

    9.8
    CriticalCVE-2019-8271

    Kaspersky Lab UltraVNC: Heap-based Buffer Overflow

    also in 4 other products

    9.8
    CriticalCVE-2019-8262

    UltraVNC: Heap-based Buffer Overflow

    also in 4 other products

    9.8
    CriticalCVE-2019-8258

    UltraVNC: Heap-based Buffer Overflow

    also in 4 other products

    9.8
    CriticalCVE-2019-8280

    Kaspersky Lab UltraVNC: Access of Memory Location After End of Buffer

    also in 1 other product

    9.8
    CriticalCVE-2019-8275

    Kaspersky Lab UltraVNC: Improper Null Termination

    also in 4 other products

    9.8
    CriticalCVE-2019-8268

    Kaspersky Lab UltraVNC: Off-by-one Error

    also in 4 other products

    9.8
    CriticalCVE-2019-8272

    Kaspersky Lab UltraVNC: Off-by-one Error

    also in 4 other products

    9.8
    HighCVE-2026-7838

    UltraVNC viewer heap buffer overflow via integer overflow in RFB connection-failure reason length

    also in 1 other product

    8.8
    CriticalCVE-2019-8265

    Kaspersky Lab UltraVNC: Access of Memory Location After End of Buffer

    also in 1 other product

    9.8
    CriticalCVE-2019-8264

    Kaspersky Lab UltraVNC: Access of Memory Location After End of Buffer

    also in 1 other product

    9.8
    CriticalCVE-2018-15361

    UltraVNC: Buffer Underflow

    also in 1 other product

    9.8
    CriticalCVE-2019-8266

    Kaspersky Lab UltraVNC: Access of Memory Location After End of Buffer

    also in 1 other product

    9.8
    HighCVE-2019-8269

    Kaspersky Lab UltraVNC: Stack-based Buffer Overflow

    also in 4 other products

    7.5
    HighCVE-2019-8276

    Kaspersky Lab UltraVNC: Stack-based Buffer Overflow

    also in 4 other products

    7.5
    CriticalCVE-2019-8260

    UltraVNC: Out-of-bounds Read

    also in 1 other product

    9.8
    CriticalCVE-2019-8261

    UltraVNC: Out-of-bounds Read

    also in 1 other product

    9.8
    HighCVE-2019-8259

    UltraVNC: Improper Initialization

    also in 4 other products

    7.5
    HighCVE-2019-8277

    Kaspersky Lab UltraVNC: Improper Initialization

    also in 4 other products

    7.5
    MediumCVE-2019-8263

    Kaspersky Lab UltraVNC: Stack-based Buffer Overflow

    also in 4 other products

    6.5
    HighCVE-2019-8267

    Kaspersky Lab UltraVNC: Out-of-bounds Read

    also in 1 other product

    7.5
    HighCVE-2019-8270

    Kaspersky Lab UltraVNC: Out-of-bounds Read

    also in 1 other product

    7.5
    MediumCVE-2026-7828

    UltraVNC repeater integer overflow in win_log malloc leading to heap overflow

    also in 1 other product

    5.3

    All vulnerabilities in search

    News

    Products

    Products by Uvnc
    UltraVNC370