{"id":"CVE-2024-9677","aliases":["EUVD-2024-50086","GHSA-x58f-9h5m-89hm"],"status":"published","title":"The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H...","description":"The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H series uOS firmware version V1.21 and earlier versions could allow an authenticated local attacker to gain privilege escalation by stealing the authentication token of a login administrator. Note that this attack could be successful only if the administrator has not logged out.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00153,"percentile":0.04486,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-522"],"published":"2024-10-22T01:19:53Z","modified":"2026-06-17T08:25:02Z","products":[{"vendor":"zyxel","product":"uos"},{"vendor":"zyxel","product":"usg flex h series uos firmware"},{"vendor":"zyxel","product":"usg_flex_700h_firmware"}],"references":[{"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-insufficiently-protected-credentials-vulnerability-in-firewalls-10-22-2024","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-9677"},{"url":"https://github.com/advisories/GHSA-x58f-9h5m-89hm"}],"sources":{"cve":[{"id":"CVE-2024-9677","description":"The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H series uOS firmware version V1.21 and earlier versions could allow an authenticated local attacker to gain privilege escalation by stealing the authentication token of a login administrator. Note that this attack could be successful only if the administrator has not logged out.","status":"published","published":"2024-10-22T01:19:53.188Z","modified":"2024-10-22T15:52:56.281Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:34:06.147811Z"}],"euvd":[{"id":"EUVD-2024-50086","description":"The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H series uOS firmware version V1.21 and earlier versions could allow an authenticated local attacker to gain privilege escalation by stealing the authentication token of a login administrator. Note that this attack could be successful only if the administrator has not logged out.","status":"published","published":"2024-10-22T01:19:53Z","modified":"2024-10-22T15:52:56Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:05:22.720016Z"}],"ghsa":[{"id":"GHSA-x58f-9h5m-89hm","title":"The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H...","description":"The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H series uOS firmware version V1.21 and earlier versions could allow an authenticated local attacker to gain privilege escalation by stealing the authentication token of a login administrator. Note that this attack could be successful only if the administrator has not logged out.","status":"published","published":"2024-10-22T03:31:41Z","modified":"2024-10-22T03:31:48Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:58:34.272194Z"}],"nvd":[{"id":"CVE-2024-9677","description":"The insufficiently protected credentials vulnerability in the CLI command of the USG FLEX H series uOS firmware version V1.21 and earlier versions could allow an authenticated local attacker to gain privilege escalation by stealing the authentication token of a login administrator. Note that this attack could be successful only if the administrator has not logged out.","status":"published","published":"2024-10-22T02:15:04.38Z","modified":"2026-06-17T08:25:02.557Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:10:33.928543Z"}]}}