Products: 1
    Vulnerabilities: 14
    Known Exploited: 0
    2
    Critical Level Threats
    3
    High Level Threats
    8
    Medium Level Threats
    1
    Low Level Threats

    Vulnerabilities

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    Vulnerabilities

    CVE-2026-70368

    Stunnel: stack-based out-of-bounds read/write in stunnel s_vlog via oversized log message

    Last Modified: Aug 04, 2026
    Published: Aug 04, 2026

    CVE-2026-70367

    Stunnel: ssrf bypass in stunnel socks proxy via ipv4-mapped ipv6 loopback and unspecified addresses allows access to loopback-only services

    Last Modified: Aug 04, 2026
    Published: Aug 04, 2026

    CVE-2021-20230

    stunnel: client certificate not correctly verified when redirect and verifyChain options are used

    Last Modified: Nov 21, 2024
    Published: Oct 11, 2020

    CVE-2015-3644

    stunnel: authentication bypass with the "redirect" option

    Last Modified: Apr 12, 2025
    Published: May 14, 2015

    CVE-2014-0016

    stunnel: Improper initialization of PRNG after fork()

    Last Modified: Apr 12, 2025
    Published: Mar 05, 2014
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    Stunnel Vulnerabilities & Security CVEs | CVE-DB