CVE-2019-8259

    Dashboard / Vulnerabilities / CVE-2019-8259

    CVE-2019-8259

    Published: 5 Mar 2019Last Modified: 10 Mar 2026

    Summary:

    Details: UltraVNC revision 1198 contains multiple memory leaks (CWE-655) in VNC client code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1199.

    References: , https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf, https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf, https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-005-ultravnc-memory-leak/, https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11, https://www.us-cert.gov/ics/advisories/icsa-20-161-06, https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High