{"id":"CVE-2020-25366","title":"An issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors.","summary":"An issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors.","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","cwe":["CWE-862"],"vendor":"dlink","product":"dir-823g_firmware","affected":["dir-823g_firmware = 1.02b05"],"published":"2021-11-04","updated":"2026-07-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-25366","references":[{"url":"https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md","label":"cve@mitre.org"},{"url":"https://www.dlink.com/en/security-bulletin/","label":"cve@mitre.org"},{"url":"http://d-link.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.dlink.com/en/security-bulletin/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.0246,"epssPercentile":0.83622,"ingestedAt":"2026-07-06T17:03:23.612Z","slug":"CVE-2020-25366","body":"## Overview\n\nAn issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors.\n\n## Affected\n\n- `dir-823g_firmware = 1.02b05`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":50.1,"likelihood":0.5,"exploitation":0,"ransomware":0},"changes":[]}