{"id":"CVE-2026-77977","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-77977","generatedAt":"2026-10-28T01:42:50.148Z","title":"Ebyte gateway product's vendor configuration utility does not require authentication before allowing certain disruptive administrative actions when default credentials remain configured.","description":"Ebyte gateway product's vendor configuration utility does not require authentication before \nallowing certain disruptive administrative actions when default \ncredentials remain configured. An unauthenticated attacker on the \nadjacent network could reboot the device or restore factory settings, \nresulting in a loss of configuration and service availability.","published":"2026-08-28T00:18:16.000Z","lastModified":"2026-08-31T19:18:41.000Z","status":"Deferred","sourceIdentifier":"ics-cert@hq.dhs.gov","cvss":{"version":"4.0","score":7.2,"severity":"HIGH","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/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-306"],"affected":[],"epss":{"score":0.00367,"percentile":0.30285,"date":"2026-10-26","history":[]},"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 (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-06.json","source":"ics-cert@hq.dhs.gov"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-06","source":"ics-cert@hq.dhs.gov"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-77977","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."}