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    CVE-2017-3730

    In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.

    Published:Jan 26, 2017
    Last Modified:Apr 20, 2025
    EPS:May 4, 2017
    EPSS Score:0.42314
    CVSS Score:7.5

    Affected Products

    Vendor
    Openssl
    Product
    Openssl
    Vendor
    Oracle
    Product
    Agile Engineering Data Management
    Vendor
    Oracle
    Product
    Communications Application Session Controller
    Vendor
    Oracle
    Product
    Communications Eagle Lnp Application Processor
    Vendor
    Oracle
    Product
    Communications Operations Monitor
    Vendor
    Oracle
    Product
    Jd Edwards Enterpriseone Tools
    Vendor
    Oracle
    Product
    Jd Edwards World Security

    Exploits

    https://www.exploit-db.com/exploits/41192/https://www.exploit-db.com/exploits/41192/https://www.exploit-db.com/exploits/41192https://github.com/olivierh59500/CVE-2017-3730

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-63075 (CVSS 7.5) — Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets whi…
    CVE-2026-63072 (CVSS 7.5) — Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key s…
    CVE-2026-54874 (CVSS 7.5) — Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to b…
    CVE-2026-14457 (CVSS 7.5) — Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the p…
    CVE-2026-63076 (CVSS 7.5) — Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parame…
    CVE-2026-63074 (CVSS 5.9) — Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) s…
    CVE-2026-63073 (CVSS 9.8) — Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directl…
    CVE-2026-18798 (CVSS 7.5) — Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for i…
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    References

    http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
    http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
    http://www.securityfocus.com/bid/95812
    http://www.securitytracker.com/id/1037717
    https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
    https://security.gentoo.org/glsa/201702-07
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us
    https://www.exploit-db.com/exploits/41192/
    https://www.openssl.org/news/secadv/20170126.txt
    https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
    http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
    http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
    http://www.securityfocus.com/bid/95812
    http://www.securitytracker.com/id/1037717
    https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
    https://security.gentoo.org/glsa/201702-07
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us
    https://www.exploit-db.com/exploits/41192/
    https://www.openssl.org/news/secadv/20170126.txt
    https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

    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