{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-12187: GL.iNet GL-MT3000 Online Firmware Upgrade one_click_upgrade command injection","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-12187","status":"final","version":"1","initial_release_date":"2026-06-14T22:00:09.360Z","current_release_date":"2026-06-14T22:00:09.360Z","revision_history":[{"date":"2026-06-14T22:00:09.360Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"A security vulnerability has been detected in GL.iNet GL-MT3000 up to 4.4.5. Affected by this vulnerability is an unknown functionality of the file /usr/bin/one_click_upgrade of the component Online Firmware Upgrade Handler. Such manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 4.7 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-12187 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-12187"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-12187"},{"category":"external","summary":"VDB-370833 | GL.iNet GL-MT3000 Online Firmware Upgrade one_click_upgrade command injection","url":"https://vuldb.com/vuln/370833"},{"category":"external","summary":"VDB-370833 | CTI Indicators (IOB, IOC, TTP, IOA)","url":"https://vuldb.com/vuln/370833/cti"},{"category":"external","summary":"CVE-2026-12187 | CVE Analysis and Report","url":"https://vuldb.com/cve/CVE-2026-12187"},{"category":"external","summary":"Submit #815654 | GL.iNet GL-MT3000 4.4.5 Command Injection","url":"https://vuldb.com/submit/815654"},{"category":"external","summary":"github.com","url":"https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/upgrade_online_url"},{"category":"external","summary":"fw.gl-inet.com","url":"https://fw.gl-inet.com/firmware/mt3000/release/mt3000-4.8.1-0819-1755615825.tar"}]},"product_tree":{"branches":[{"category":"vendor","name":"GL.iNet","branches":[{"category":"product_name","name":"GL-MT3000","branches":[{"category":"product_version","name":"4.4.0","product":{"name":"GL.iNet GL-MT3000 4.4.0","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:gl.inet:gl-mt3000:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"4.4.1","product":{"name":"GL.iNet GL-MT3000 4.4.1","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:gl.inet:gl-mt3000:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"4.4.2","product":{"name":"GL.iNet GL-MT3000 4.4.2","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:gl.inet:gl-mt3000:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"4.4.3","product":{"name":"GL.iNet GL-MT3000 4.4.3","product_id":"CSAFPID-4","product_identification_helper":{"cpe":"cpe:2.3:a:gl.inet:gl-mt3000:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"4.4.4","product":{"name":"GL.iNet GL-MT3000 4.4.4","product_id":"CSAFPID-5","product_identification_helper":{"cpe":"cpe:2.3:a:gl.inet:gl-mt3000:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"4.4.5","product":{"name":"GL.iNet GL-MT3000 4.4.5","product_id":"CSAFPID-6","product_identification_helper":{"cpe":"cpe:2.3:a:gl.inet:gl-mt3000:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"4.7","product":{"name":"GL.iNet GL-MT3000 4.7","product_id":"CSAFPID-7","product_identification_helper":{"cpe":"cpe:2.3:a:gl.inet:gl-mt3000:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-12187","title":"GL.iNet GL-MT3000 Online Firmware Upgrade one_click_upgrade command injection","notes":[{"category":"description","text":"A security vulnerability has been detected in GL.iNet GL-MT3000 up to 4.4.5. Affected by this vulnerability is an unknown functionality of the file /usr/bin/one_click_upgrade of the component Online Firmware Upgrade Handler. Such manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 4.7 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6"],"fixed":["CSAFPID-7"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","baseScore":8.7,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 4.7.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5","CSAFPID-6"],"url":"https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/upgrade_online_url"}]}]}