{"id":"CVE-2020-15689","aliases":["EUVD-2020-7676","GHSA-vr4r-jm4f-grc9"],"status":"published","title":"Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request...","description":"Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01328,"percentile":0.71243,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2020-07-13T13:48:39Z","modified":"2026-06-17T02:57:03Z","products":[{"vendor":"embedthis","product":"appweb"}],"references":[{"url":"https://github.com/embedthis/appweb-gpl/issues/2","tags":["x_refsource_CONFIRM","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15689"},{"url":"https://github.com/embedthis/appweb-gpl/issues/4"},{"url":"https://github.com/advisories/GHSA-vr4r-jm4f-grc9"}],"sources":{"cve":[{"id":"CVE-2020-15689","description":"Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.","status":"published","published":"2020-07-13T13:48:39Z","modified":"2024-08-04T13:22:30.717Z","updated_at":"2026-11-02T14:35:50.228781Z"}],"euvd":[{"id":"EUVD-2020-7676","description":"Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.","status":"published","published":"2020-07-13T13:48:39Z","modified":"2024-08-04T13:22:30Z","updated_at":"2026-11-03T03:07:30.36726Z"}],"ghsa":[{"id":"GHSA-vr4r-jm4f-grc9","title":"Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request...","description":"Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.","status":"published","published":"2022-05-24T17:22:49Z","modified":"2023-01-27T21:31:11Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:43:22.817498Z"}],"nvd":[{"id":"CVE-2020-15689","description":"Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.","status":"published","published":"2020-07-13T14:15:11.07Z","modified":"2026-06-17T02:57:03.463Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:09.126752Z"}]}}