{"id":"CVE-2026-3823","title":"EHG2408 series switch developed by Atop Technologies has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and execute arbitrary code.","summary":"EHG2408 series switch developed by Atop Technologies has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and execute arbitrary code.","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-121","CWE-787"],"vendor":"blackbeartechhive","product":"atop_ehg2408_firmware","affected":["atop_ehg2408_firmware < 3.36","atop_ehg2408-2sfp_firmware < 3.36"],"patched":["atop_ehg2408_firmware 3.36","atop_ehg2408-2sfp_firmware 3.36"],"published":"2026-03-09","updated":"2026-07-07","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-3823","references":[{"url":"https://www.twcert.org.tw/en/cp-139-10753-e091e-2.html","label":"twcert@cert.org.tw"},{"url":"https://www.twcert.org.tw/tw/cp-132-10752-5a4d9-1.html","label":"twcert@cert.org.tw"}],"tags":["nvd"],"epss":0.00732,"epssPercentile":0.52868,"ingestedAt":"2026-07-07T08:52:24.798Z","slug":"CVE-2026-3823","body":"## Overview\n\nEHG2408 series switch developed by Atop Technologies has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and execute arbitrary code.\n\n## Affected\n\n- `atop_ehg2408_firmware < 3.36`\n- `atop_ehg2408-2sfp_firmware < 3.36`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `atop_ehg2408_firmware 3.36`\n- `atop_ehg2408-2sfp_firmware 3.36`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}