How severe is CVE-2019-16399?

CVE-2019-16399 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-16399 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16399?

CVE-2019-16399 affects Westerndigital Wd My Book Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16399?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-16399 published?

CVE-2019-16399 was published on 2019-09-18 and last updated on 2026-06-17.

CVE-2019-16399

CVE-2019-16399 is a critical-severity vulnerability in Westerndigital Wd My Book Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Westerndigital Wd My Book Firmware
Published: 2019-09-18
Last modified: 2026-06-17

Description

Western Digital WD My Book World through II 1.02.12 suffers from Broken Authentication, which allows an attacker to access the /admin/ directory without credentials. An attacker can easily enable SSH from /admin/system_advanced.php?lang=en and login with the default root password welc0me.

Frequently asked questions

What is CVE-2019-16399?: Western Digital WD My Book World through II 1.02.12 suffers from Broken Authentication, which allows an attacker to access the /admin/ directory without credentials. An attacker can easily enable SSH from /admin/system_advanced.php?lang=en and login with the default root password welc0me.
How severe is CVE-2019-16399?: CVE-2019-16399 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-16399 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16399?: CVE-2019-16399 affects Westerndigital Wd My Book Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16399?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-16399 published?: CVE-2019-16399 was published on 2019-09-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:westerndigital:wd_my_book_firmware:*:*:world_ii:*:*:*:*:*

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