{"cve":"CVE-2021-35941","nvd":{"published":"2021-06-29T21:15:07.880","modified":"2026-06-17T03:57:58.270","status":"Modified","description":"Western Digital WD My Book Live (2.x and later) and WD My Book Live Duo (all versions) have an administrator API that can perform a system factory restore without authentication, as exploited in the wild in June 2021, a different vulnerability than CVE-2018-18472.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-306"],"references":["https://arstechnica.com/gadgets/2021/06/hackers-exploited-0-day-not-2018-bug-to-mass-wipe-my-book-live-devices/","https://www.westerndigital.com/support/productsecurity/wdc-21008-recommended-security-measures-wd-mybooklive-wd-mybookliveduo","https://arstechnica.com/gadgets/2021/06/hackers-exploited-0-day-not-2018-bug-to-mass-wipe-my-book-live-devices/","https://www.westerndigital.com/support/productsecurity/wdc-21008-recommended-security-measures-wd-mybooklive-wd-mybookliveduo"],"products":["westerndigital:wd_my_book_live_duo_firmware","westerndigital:wd_my_book_live_firmware"],"source":"nvd","synced_at":"2026-10-19T21:20:07.141963181+00:00"},"epss":{"cve":"CVE-2021-35941","score":0.1271,"percentile":0.96265,"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."]}