THREATPORT/VULNERABILITY/CVE-2021-35941
HIGH SEVERITY

CVE-2021-35941

Wd My Book Live Firmware vulnerability

CVSS
7.5
EPSS
12.7%
EPSS pct
96th
Exploited
No known
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.
Affected vendor
Westerndigital
Affected product
Wd My Book Live Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-306 — Missing Authentication for Critical Function
Published
2021-06-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 12.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2021-35941

  • Confirm whether Westerndigital Wd My Book Live Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-35941.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-35941

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-35941 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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