{"cve":"CVE-2023-1257","nvd":{"published":"2023-03-07T17:15:12.527","modified":"2026-06-17T05:27:28.957","status":"Modified","description":"An attacker with physical access to the affected Moxa UC Series devices can initiate a restart of the device and gain access to its BIOS. Command line options can then be altered, allowing the attacker to access the terminal. From the terminal, the attacker can modify the device’s authentication files to create a new user and gain full access to the system.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":6.8},"cwes":[],"references":["https://www.cisa.gov/uscert/ics/advisories/icsa-22-333-04","https://www.cisa.gov/uscert/ics/advisories/icsa-22-333-04"],"products":["moxa:uc-2101-lx_firmware","moxa:uc-2102-lx_firmware","moxa:uc-2102-t-lx_firmware","moxa:uc-2104-lx_firmware","moxa:uc-2111-lx_firmware","moxa:uc-2112-lx_firmware","moxa:uc-2114-t-lx_firmware","moxa:uc-2116-t-lx_firmware","moxa:uc-3101-t-ap-lx_firmware","moxa:uc-3101-t-eu-lx_firmware","moxa:uc-3101-t-us-lx_firmware","moxa:uc-3111-t-ap-lx-nw_firmware","moxa:uc-3111-t-ap-lx_firmware","moxa:uc-3111-t-eu-lx-nw_firmware","moxa:uc-3111-t-eu-lx_firmware","moxa:uc-3111-t-us-lx-nw_firmware","moxa:uc-3111-t-us-lx_firmware","moxa:uc-3121-t-ap-lx_firmware","moxa:uc-3121-t-eu-lx_firmware","moxa:uc-3121-t-us-lx_firmware","moxa:uc-5101-lx_firmware","moxa:uc-5101-t-lx_firmware","moxa:uc-5102-lx_firmware","moxa:uc-5102-t-lx_firmware","moxa:uc-5111-lx_firmware","moxa:uc-5111-t-lx_firmware","moxa:uc-5112-lx_firmware","moxa:uc-5112-t-lx_firmware","moxa:uc-8112-lx_firmware","moxa:uc-8112-me-t-lx1_firmware","moxa:uc-8112-me-t-lx_firmware","moxa:uc-8112a-me-t-lx_firmware","moxa:uc-8131-lx_firmware","moxa:uc-8132-lx_firmware","moxa:uc-8162-lx_firmware","moxa:uc-8210-t-lx-s_firmware","moxa:uc-8220-t-lx-ap-s_firmware","moxa:uc-8220-t-lx-eu-s_firmware","moxa:uc-8220-t-lx-s_firmware","moxa:uc-8220-t-lx-us-s_firmware","moxa:uc-8220-t-lx_firmware","moxa:uc-8410a-lx_firmware","moxa:uc-8410a-nw-lx_firmware","moxa:uc-8410a-nw-t-lx_firmware","moxa:uc-8410a-t-lx_firmware","moxa:uc-8540-lx_firmware","moxa:uc-8540-t-ct-lx_firmware","moxa:uc-8540-t-lx_firmware","moxa:uc-8580-lx_firmware","moxa:uc-8580-q-lx_firmware"],"source":"nvd","synced_at":"2026-10-19T21:37:41.955480748+00:00"},"epss":{"cve":"CVE-2023-1257","score":0.00316,"percentile":0.24579,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}