{"id":"CVE-2020-25367","title":"A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05","summary":"A command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05. An attacker is able to execute arbitrary web scripts via shell metacharacters in the Captcha field to Login.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-78"],"vendor":"dlink","product":"dir-823g_firmware","affected":["dir-823g_firmware = 1.0.2b05"],"published":"2021-11-04","updated":"2026-07-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-25367","references":[{"url":"https://github.com/sek1th/iot/blob/master/dir823g_3.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_3.md","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.dlink.com/en/security-bulletin/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.08649,"epssPercentile":0.94927,"ingestedAt":"2026-07-06T17:03:23.610Z","slug":"CVE-2020-25367","body":"## Overview\n\nA command injection vulnerability was discovered in the HNAP1 protocol in D-Link DIR-823G devices with firmware V1.0.2B05. An attacker is able to execute arbitrary web scripts via shell metacharacters in the Captcha field to Login.\n\n## Affected\n\n- `dir-823g_firmware = 1.0.2b05`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":56,"depthScoreParts":{"impact":53.9,"likelihood":1.7,"exploitation":0,"ransomware":0},"changes":[]}