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    2 vulnerabilities found for libwebsocket by warmcat

    CVE-2025-11678 (GCVE-0-2025-11678)

    Vulnerability from cvelistv5 – Published: 2025-10-20 13:51 – Updated: 2025-10-20 14:00
    VLAI
    Title
    Stack-based Buffer Overflow in libwebsockets DNS response parsing
    Summary
    Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.
    Severity
    7.5 (High)
    CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    warmcat libwebsocket Affected: 4.0 , ≤ 4.4.2 (semver)
    Affected: 4.0 , ≤ 4.3.6 (semver)
    		Create a notification for this product.
    Credits
    Raffaele Bova at Nozomi Networks
    Show details on NVD website
    To clipboard 

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    CVE-2025-11678 (GCVE-0-2025-11678)

    Vulnerability from nvd – Published: 2025-10-20 13:51 – Updated: 2025-10-20 14:00
    VLAI
    Title
    Stack-based Buffer Overflow in libwebsockets DNS response parsing
    Summary
    Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.
    Severity
    7.5 (High)
    CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    warmcat libwebsocket Affected: 4.0 , ≤ 4.4.2 (semver)
    Affected: 4.0 , ≤ 4.3.6 (semver)
    		Create a notification for this product.
    Credits
    Raffaele Bova at Nozomi Networks
    Show details on NVD website
    To clipboard 

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