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HIGH

CVE-2026-73778

CVSS v3

8.1

HIGH

EPSS Score

0.5 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability exists in the Credential Manager component that may allow for unauthorized administrative access. An unauthenticated remote attacker could exploit this vulnerability on a device in its factory-default or post-ZTP state before any administrator has configured credentials by providing a predictable factory-default password. Successful exploitation could result in full administrative control of the affected device during the initial setup process.

Technical details

Published
2026-09-01
Last Modified
2026-09-03

Frequently asked questions

What is CVE-2026-73778?

A vulnerability exists in the Credential Manager component that may allow for unauthorized administrative access. An unauthenticated remote attacker could exploit this vulnerability on a device in its factory-default or post-ZTP state before any administrator has configured credentials by providing a predictable factory-default password. Successful exploitation could result in full administrative control of the affected device during the initial setup process.

Is CVE-2026-73778 actively exploited?

Active exploitation of CVE-2026-73778 has not been confirmed. Its EPSS score was 0.5% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-73778?

CVE-2026-73778 has a CVSS v3 base score of 8.1 (HIGH severity).

Is CVE-2026-73778 affecting your environment?

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