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    CVE-2020-19695

    Buffer Overflow found in Nginx NJS allows a remote attacker to execute arbitrary code via the njs_object_property parameter of the njs/njs_vm.c function.

    Published:Apr 4, 2023
    Last Modified:Aug 12, 2025
    EPS:Apr 4, 2023
    EPSS Score:0.0094
    CVSS Score:9.8

    Affected Products

    Vendor
    F5
    Product
    Njs

    Exploits

    https://github.com/nginx/njs/issues/188https://github.com/nginx/njs/issues/188

    Related CVEs

    CVE-2026-8711 (CVSS 9.2) — NGINX JavaScript has a vulnerability when the js_fetch_proxy directive is configured with at least one client-…
    CVE-2023-27730 (CVSS 7.5) — Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_lvlhsh_find at src/n…
    CVE-2023-27727 (CVSS 7.5) — Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_function_frame at sr…
    CVE-2023-27729 (CVSS 7.5) — Nginx NJS v0.7.10 was discovered to contain an illegal memcpy via the function njs_vmcode_return at src/njs_vm…
    CVE-2023-27728 (CVSS 7.5) — Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_dump_is_recursive at…
    CVE-2020-19692 (CVSS 9.8) — Buffer Overflow vulnerabilty found in Nginx NJS v.0feca92 allows a remote attacker to execute arbitrary code v…
    CVE-2022-43284 (CVSS 7.5) — Nginx NJS v0.7.2 to v0.7.4 was discovered to contain a segmentation violation via njs_scope_valid_value at njs…
    CVE-2022-43285 (CVSS 7.5) — Nginx NJS v0.7.4 was discovered to contain a segmentation violation in njs_promise_reaction_job. NOTE: the ven…
    CVE-2022-43286 (CVSS 9.8) — Nginx NJS v0.7.2 was discovered to contain a heap-use-after-free bug caused by illegal memory copy in the func…
    CVE-2022-38890 (CVSS 5.5) — Nginx NJS v0.7.7 was discovered to contain a segmentation violation via njs_utf8_next at src/njs_utf8.h…

    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