{"id":"CVE-2026-87666","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-87666","generatedAt":"2026-10-23T21:16:55.761Z","title":"An OS command injection vulnerability exists in the time and zone management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1.","description":"An OS command injection vulnerability exists in the time and zone management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. When updating system timezone settings via the REST API or configuration download routines, the system fails to sanitize input values before processing them in underlying shell execution routines. An authenticated user with low-privilege administrative access can exploit this vulnerability by submitting a crafted timezone string containing shell metacharacters. Successful exploitation allows the attacker to escape the restricted management environment and execute arbitrary shell commands with elevated privileges.","published":"2026-10-08T04:17:53.000Z","lastModified":"2026-10-14T19:14:40.000Z","status":"Analyzed","sourceIdentifier":"sirt@brocade.com","cvss":{"version":"4.0","score":8.6,"severity":"HIGH","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-78"],"affected":["broadcom/fabric operating system"],"epss":{"score":0.02572,"percentile":0.85048,"date":"2026-10-22","history":[{"date":"2026-10-08","score":0.01847,"percentile":0.78427}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T04:17:53.000Z","detail":{"score":"8.6","severity":"HIGH","publishedAt":"2026-10-08T04:17:52.553Z"},"summary":"New CVE, high severity (CVSS 8.6)."}],"references":[{"url":"https://support.broadcom.com/external/content/SecurityAdvisories/0/39149","tags":["Vendor Advisory"],"source":"sirt@brocade.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-87666","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}