{"id":"CVE-2021-25847","aliases":["EUVD-2021-12728","GHSA-7839-55w4-4gg2"],"status":"published","title":"Improper validation of the length field of LLDP-MED TLV in userdisk/vport_lldpd in Moxa Camera...","description":"Improper validation of the length field of LLDP-MED TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V Series, version 1.1, allows information disclosure to attackers due to controllable loop counter variable via a crafted lldp packet.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01209,"percentile":0.68631,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2021-05-10T10:43:02Z","modified":"2026-06-17T03:42:30Z","products":[{"vendor":"moxa","product":"vport_06ec-2v26m_firmware"},{"vendor":"moxa","product":"vport_06ec-2v36m-ct-t_firmware"},{"vendor":"moxa","product":"vport_06ec-2v36m-ct_firmware"},{"vendor":"moxa","product":"vport_06ec-2v36m-t_firmware"},{"vendor":"moxa","product":"vport_06ec-2v42m-ct-t_firmware"},{"vendor":"moxa","product":"vport_06ec-2v42m-ct_firmware"},{"vendor":"moxa","product":"vport_06ec-2v42m-t_firmware"},{"vendor":"moxa","product":"vport_06ec-2v42m_firmware"},{"vendor":"moxa","product":"vport_06ec-2v60m-ct-t_firmware"},{"vendor":"moxa","product":"vport_06ec-2v60m-ct_firmware"},{"vendor":"moxa","product":"vport_06ec-2v60m-t_firmware"},{"vendor":"moxa","product":"vport_06ec-2v60m_firmware"},{"vendor":"moxa","product":"vport_06ec-2v80m-ct-t_firmware"},{"vendor":"moxa","product":"vport_06ec-2v80m-ct_firmware"},{"vendor":"moxa","product":"vport_06ec-2v80m-t_firmware"},{"vendor":"moxa","product":"vport_06ec-2v80m_firmware"}],"references":[{"url":"https://www.moxa.com/en/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.moxa.com/en/support/product-support/security-advisory/vport-06ec-2v-series-ip-cameras-vulnerabilities","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25847"},{"url":"https://github.com/advisories/GHSA-7839-55w4-4gg2"}],"sources":{"cve":[{"id":"CVE-2021-25847","description":"Improper validation of the length field of LLDP-MED TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V Series, version 1.1, allows information disclosure to attackers due to controllable loop counter variable via a crafted lldp packet.","status":"published","published":"2021-05-10T10:43:02Z","modified":"2024-08-03T20:11:28.46Z","updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2021-12728","description":"Improper validation of the length field of LLDP-MED TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V Series, version 1.1, allows information disclosure to attackers due to controllable loop counter variable via a crafted lldp packet.","status":"published","published":"2021-05-10T10:43:02Z","modified":"2024-08-03T20:11:28Z","updated_at":"2026-11-03T03:24:52.420769Z"}],"ghsa":[{"id":"GHSA-7839-55w4-4gg2","title":"Improper validation of the length field of LLDP-MED TLV in userdisk/vport_lldpd in Moxa Camera...","description":"Improper validation of the length field of LLDP-MED TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V Series, version 1.1, allows information disclosure to attackers due to controllable loop counter variable via a crafted lldp packet.","status":"published","published":"2022-05-24T19:01:55Z","modified":"2023-01-29T05:06:39Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:46:04.414181Z"}],"nvd":[{"id":"CVE-2021-25847","description":"Improper validation of the length field of LLDP-MED TLV in userdisk/vport_lldpd in Moxa Camera VPort 06EC-2V Series, version 1.1, allows information disclosure to attackers due to controllable loop counter variable via a crafted lldp packet.","status":"published","published":"2021-05-10T11:15:07.903Z","modified":"2026-06-17T03:42:30.777Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":8.5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:06:53.343329Z"}]}}