{"id":"CVE-2018-15504","aliases":["EUVD-2018-7381","GHSA-x64c-pwxp-r95w"],"status":"published","title":"An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server...","description":"An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11.","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":"2026-11-08","score":0.02766,"percentile":0.86395,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2018-08-18T00:00:00Z","modified":"2026-06-17T01:42:39Z","products":[{"vendor":"embedthis","product":"appweb"},{"vendor":"embedthis","product":"goahead"},{"vendor":"juniper","product":"junos"}],"references":[{"url":"https://github.com/embedthis/appweb/commit/66067ae6d1fa08b37a270e7dc1821df52ed2daef","tags":["x_transferred","Patch","Third Party Advisory"]},{"url":"https://github.com/embedthis/appweb/issues/605","tags":["x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://github.com/embedthis/goahead/issues/264","tags":["x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://supportportal.juniper.net/s/article/2021-07-Security-Bulletin-Junos-OS-Multiple-J-Web-vulnerabilities-resolved","tags":["x_transferred","Third Party Advisory"]},{"url":"https://supportportal.juniper.net/s/article/2019-07-Security-Bulletin-Junos-OS-J-Web-Denial-of-Service-due-to-multiple-vulnerabilities-in-Embedthis-Appweb-Server","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-15504"},{"url":"https://github.com/advisories/GHSA-x64c-pwxp-r95w"}],"sources":{"cve":[{"id":"CVE-2018-15504","description":"An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11.","status":"published","published":"2018-08-18T00:00:00Z","modified":"2024-08-05T09:54:03.563Z","updated_at":"2026-11-02T14:35:03.825765Z"}],"euvd":[{"id":"EUVD-2018-7381","description":"An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11.","status":"published","published":"2018-08-18T00:00:00Z","modified":"2024-08-05T09:54:03Z","updated_at":"2026-11-03T02:39:44.728742Z"}],"ghsa":[{"id":"GHSA-x64c-pwxp-r95w","title":"An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server...","description":"An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11.","status":"published","published":"2022-05-14T02:19:49Z","modified":"2023-06-13T21:30:16Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:54:38.89081Z"}],"nvd":[{"id":"CVE-2018-15504","description":"An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11.","status":"published","published":"2018-08-18T03:29:00.237Z","modified":"2026-06-17T01:42:39.803Z","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":"2026-11-02T14:04:36.842579Z"}]}}