{"id":"CVE-2021-33254","aliases":["EUVD-2021-19965","GHSA-65f4-q4wv-frpq"],"status":"published","title":"An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows...","description":"An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.","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":0.01548,"percentile":0.75235,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2022-06-01T14:31:57Z","modified":"2026-06-17T03:54:23Z","products":[{"vendor":"embedthis","product":"appweb"}],"references":[{"url":"https://awxylitol.github.io/2021/05/09/embedthis-appweb-npd-bug.html","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33254"},{"url":"https://github.com/advisories/GHSA-65f4-q4wv-frpq"}],"sources":{"cve":[{"id":"CVE-2021-33254","description":"An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.","status":"published","published":"2022-06-01T14:31:57Z","modified":"2024-08-03T23:42:20.295Z","updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-19965","description":"An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.","status":"published","published":"2022-06-01T14:31:57Z","modified":"2024-08-03T23:42:20Z","updated_at":"2026-11-03T03:24:34.73748Z"}],"ghsa":[{"id":"GHSA-65f4-q4wv-frpq","title":"An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows...","description":"An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.","status":"published","published":"2022-06-03T00:00:58Z","modified":"2023-01-27T05:03:25Z","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":"2026-11-02T14:42:14.754174Z"}],"nvd":[{"id":"CVE-2021-33254","description":"An issue was discovered in src/http/httpLib.c in EmbedThis Appweb Community Edition 8.2.1, allows attackers to cause a denial of service via the stream paramter to the parseUri function.","status":"published","published":"2022-06-02T14:15:28.63Z","modified":"2026-06-17T03:54:23.56Z","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":"2026-11-02T14:07:06.501652Z"}]}}