{"id":"CVE-2026-120240","title":"WAVLINK WN553X1-B WireGuard CLI Group ioos sub_41A748 os command injection","summary":"A vulnerability was determined in WAVLINK WN553X1-B V260403_2.0.0. This issue affects the function sub_41A748 of the file /bin/ioos of the component WireGuard CLI Group Handler. Executing a manipulation of the argument group_id/group_nam…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R","cvssSource":"cna","cwe":["CWE-78","CWE-77"],"vendor":"WAVLINK","product":"WN553X1-B","affected":["WN553X1-B V260403_2.0.0"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-11-02T14:30:20.112203Z"},"exploitAvailable":true,"published":"2026-11-01","updated":"2026-11-02","sourceUpdated":"2026-11-02T14:30:33.865Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-120240","references":[{"url":"https://vuldb.com/vuln/429599","label":"VDB-429599 | WAVLINK WN553X1-B WireGuard CLI Group ioos sub_41A748 os command injection"},{"url":"https://vuldb.com/vuln/429599/cti","label":"VDB-429599 | CTI Indicators (IOB, IOC, TTP, IOA)"},{"url":"https://vuldb.com/cve/CVE-2026-120240","label":"CVE-2026-120240 | CVE Analysis and Report"},{"url":"https://vuldb.com/submit/919251","label":"Submit #919251 | Wavlink Router Firmware V260403_2.0.0 Command Injection"},{"url":"https://github.com/senxitoyshuyi-ui/HACKALL/blob/main/WAVLINK%20WN553X1-B%20Router/WAVLINK_WN553X1-B_wireguard_cli_group_command_injection.md"}],"tags":["cve.org","exploit-available"],"epss":0.01687,"epssPercentile":0.77096,"ingestedAt":"2026-11-05T19:30:42.664Z","slug":"CVE-2026-120240","body":"## Overview\n\nA vulnerability was determined in WAVLINK WN553X1-B V260403_2.0.0. This issue affects the function sub_41A748 of the file /bin/ioos of the component WireGuard CLI Group Handler. Executing a manipulation of the argument group_id/group_name can lead to os command injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.\n\n## Affected\n\n- `WN553X1-B V260403_2.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":67,"depthScoreParts":{"impact":54.5,"likelihood":0.3,"exploitation":12,"ransomware":0},"changes":[]}