{"id":"CVE-2026-105440","aliases":["EUVD-2026-123548","GHSA-fx77-wm35-pp29"],"status":"published","title":"Switch Engine (EXOS) JSON-RPC Authorization Bypass Allows Read-Only Users to Disclose Sensitive Information","description":"Missing authorization in the JSON-RPC web services interface\nof Extreme Networks Switch Engine (EXOS) allows an authenticated,\nlow-privileged (read-only) user to execute CLI show commands that are\nrestricted to that role through the command line interface. Successful\nexploitation results in disclosure of sensitive information, including the\ndevice configuration and the password hashes of local accounts. Configuration,\nenable, and debug commands are not affected. Disclosed password hashes can be\nattacked offline, and a weak password could lead to administrative access to\nthe device. This issue is fixed in Switch Engine 33.7.1-patch1-11,\n33.1.100.133-patch1-9, and 32.7.4.15-patch1-11.\n\n\n\n\n\n\n\n\nExtreme Networks would like to thank Toàn Lê (GitHub: https://github.com/toanln-cov) for responsibly disclosing this vulnerability and for working with our PSIRT team through coordinated disclosure.","severity":{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00362,"percentile":0.30451,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-862"],"published":"2026-11-11T15:23:47Z","modified":"2026-11-12T20:04:52Z","exploits":[{"source":"pocgithub","id":"toanln-cov/CVE-2026-105440","title":"toanln-cov/CVE-2026-105440","date":"2026-11-12","url":"https://github.com/toanln-cov/CVE-2026-105440"}],"products":[{"vendor":"extreme networks","product":"switch engine (exos)"}],"references":[{"url":"https://extreme-networks.my.site.com/ExtrArticleDetail?an=000140004"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105440"},{"url":"https://github.com/advisories/GHSA-fx77-wm35-pp29"}],"sources":{"cve":[{"id":"CVE-2026-105440","title":"Switch Engine (EXOS) JSON-RPC Authorization Bypass Allows Read-Only Users to Disclose Sensitive Information","description":"Missing authorization in the JSON-RPC web services interface\nof Extreme Networks Switch Engine (EXOS) allows an authenticated,\nlow-privileged (read-only) user to execute CLI show commands that are\nrestricted to that role through the command line interface. Successful\nexploitation results in disclosure of sensitive information, including the\ndevice configuration and the password hashes of local accounts. Configuration,\nenable, and debug commands are not affected. Disclosed password hashes can be\nattacked offline, and a weak password could lead to administrative access to\nthe device. This issue is fixed in Switch Engine 33.7.1-patch1-11,\n33.1.100.133-patch1-9, and 32.7.4.15-patch1-11.\n\n\n\n\n\n\n\n\nExtreme Networks would like to thank Toàn Lê (GitHub: https://github.com/toanln-cov) for responsibly disclosing this vulnerability and for working with our PSIRT team through coordinated disclosure.","status":"published","published":"2026-11-11T15:23:47.991Z","modified":"2026-11-11T15:30:14.813Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-11T16:29:57.175584Z"}],"euvd":[{"id":"EUVD-2026-123548","description":"Missing authorization in the JSON-RPC web services interface\nof Extreme Networks Switch Engine (EXOS) allows an authenticated,\nlow-privileged (read-only) user to execute CLI show commands that are\nrestricted to that role through the command line interface. Successful\nexploitation results in disclosure of sensitive information, including the\ndevice configuration and the password hashes of local accounts. Configuration,\nenable, and debug commands are not affected. Disclosed password hashes can be\nattacked offline, and a weak password could lead to administrative access to\nthe device. This issue is fixed in Switch Engine 33.7.1-patch1-11,\n33.1.100.133-patch1-9, and 32.7.4.15-patch1-11.\n\n\n\n\n\n\n\n\nExtreme Networks would like to thank Toàn Lê (GitHub: https://github.com/toanln-cov) for responsibly disclosing this vulnerability and for working with our PSIRT team through coordinated disclosure.","status":"published","published":"2026-11-11T15:23:47Z","modified":"2026-11-11T15:30:14Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-11T20:30:22.572562Z"}],"ghsa":[{"id":"GHSA-fx77-wm35-pp29","title":"Missing authorization in the JSON-RPC web services interface\nof Extreme Networks Switch Engine ...","description":"Missing authorization in the JSON-RPC web services interface\nof Extreme Networks Switch Engine (EXOS) allows an authenticated,\nlow-privileged (read-only) user to execute CLI show commands that are\nrestricted to that role through the command line interface. Successful\nexploitation results in disclosure of sensitive information, including the\ndevice configuration and the password hashes of local accounts. Configuration,\nenable, and debug commands are not affected. Disclosed password hashes can be\nattacked offline, and a weak password could lead to administrative access to\nthe device. This issue is fixed in Switch Engine 33.7.1-patch1-11,\n33.1.100.133-patch1-9, and 32.7.4.15-patch1-11.\n\n\n\n\n\n\n\n\nExtreme Networks would like to thank Toàn Lê (GitHub: https://github.com/toanln-cov) for responsibly disclosing this vulnerability and for working with our PSIRT team through coordinated disclosure.","status":"published","published":"2026-11-11T18:31:36Z","modified":"2026-11-11T18:31:39Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-862"],"updated_at":"2026-11-11T18:35:38.720583Z"}],"nvd":[{"id":"CVE-2026-105440","description":"Missing authorization in the JSON-RPC web services interface\nof Extreme Networks Switch Engine (EXOS) allows an authenticated,\nlow-privileged (read-only) user to execute CLI show commands that are\nrestricted to that role through the command line interface. Successful\nexploitation results in disclosure of sensitive information, including the\ndevice configuration and the password hashes of local accounts. Configuration,\nenable, and debug commands are not affected. Disclosed password hashes can be\nattacked offline, and a weak password could lead to administrative access to\nthe device. This issue is fixed in Switch Engine 33.7.1-patch1-11,\n33.1.100.133-patch1-9, and 32.7.4.15-patch1-11.\n\n\n\n\n\n\n\n\nExtreme Networks would like to thank Toàn Lê (GitHub: https://github.com/toanln-cov) for responsibly disclosing this vulnerability and for working with our PSIRT team through coordinated disclosure.","status":"published","published":"2026-11-11T16:17:24.817Z","modified":"2026-11-12T20:04:52.377Z","cvss":[{"version":"4.0","score":8.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-11T17:25:38.53844Z"}]}}