{"id":"CVE-2026-121615","title":"Linksys E5600 Login mesh_login.cgi improper authentication","summary":"A vulnerability was determined in Linksys E5600 1.1.0.26. Affected is an unknown function of the file /cgi-bin/mesh_login.cgi of the component Login Handler. Executing a manipulation can lead to improper authentication. The attack can be…","severity":"critical","cvss":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","cvssSource":"cna","cwe":["CWE-287"],"vendor":"Linksys","product":"E5600","affected":["E5600 1.1.0.26"],"published":"2026-11-04","updated":"2026-11-04","sourceUpdated":"2026-11-04T02:15:20.055Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121615","references":[{"url":"https://vuldb.com/vuln/430463","label":"VDB-430463 | Linksys E5600 Login mesh_login.cgi improper authentication"},{"url":"https://vuldb.com/vuln/430463/cti","label":"VDB-430463 | CTI Indicators (IOB, IOC, IOA)"},{"url":"https://vuldb.com/cve/CVE-2026-121615","label":"CVE-2026-121615 | CVE Analysis and Report"},{"url":"https://vuldb.com/submit/1023310","label":"Submit #1023310 | Linksys E5600 1.1.0.26 Improper Authentication (CWE-287)"},{"url":"https://github.com/Zimo-666/E5600-cves/tree/main/02-mesh-login-auth-bypass"},{"url":"https://www.linksys.com/"}],"tags":["cve.org"],"epss":0.00754,"epssPercentile":0.55343,"ingestedAt":"2026-11-05T20:33:06.661Z","slug":"CVE-2026-121615","body":"## Overview\n\nA vulnerability was determined in Linksys E5600 1.1.0.26. Affected is an unknown function of the file /cgi-bin/mesh_login.cgi of the component Login Handler. Executing a manipulation can lead to improper authentication. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.\n\n## Affected\n\n- `E5600 1.1.0.26`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":55,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}