{"id":"CVE-2026-82539","title":"A vulnerability was determined in TOTOLINK A720R 4.1.5cu.630_B20250509","summary":"A vulnerability was determined in TOTOLINK A720R 4.1.5cu.630_B20250509. This impacts the function setMacFilterRules of the file cstecgi.cgi of the component MAC Filtering. Executing a manipulation of the argument desc can lead to memory …","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-119"],"published":"2026-08-30","updated":"2026-08-30","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82539","references":[{"url":"https://github.com/Xernary/CVE-2026-82539","label":"cna@vuldb.com"},{"url":"https://vuldb.com/cve/CVE-2026-82539","label":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/888696","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/397055","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/397055/cti","label":"cna@vuldb.com"},{"url":"https://www.totolink.net/","label":"cna@vuldb.com"}],"tags":["nvd","exploit-available"],"ingestedAt":"2026-08-30T17:55:39.746Z","epss":0.00599,"epssPercentile":0.47084,"exploits":{"github":1,"githubRepos":["https://github.com/Xernary/CVE-2026-82539"],"checkedAt":"2026-09-21T15:30:52.929Z"},"exploitAvailable":true,"slug":"CVE-2026-82539","body":"## Overview\n\nA vulnerability was determined in TOTOLINK A720R 4.1.5cu.630_B20250509. This impacts the function setMacFilterRules of the file cstecgi.cgi of the component MAC Filtering. Executing a manipulation of the argument desc can lead to memory corruption. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":62,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":5495,"id":"CVE-2026-82539","ts":1788887295273,"field":"exploit_available","old":"false","new":"true"},{"seq":4373,"id":"CVE-2026-82539","ts":1788886402706,"field":"exploit_available","old":"true","new":"false"},{"seq":3089,"id":"CVE-2026-82539","ts":1788883066830,"field":"exploit_available","old":"false","new":"true"},{"seq":2118,"id":"CVE-2026-82539","ts":1788882470794,"field":"exploit_available","old":"true","new":"false"},{"seq":1183,"id":"CVE-2026-82539","ts":1788881908119,"field":"exploit_available","old":"false","new":"true"}]}