CVE-2026-19117
CVSS v3
9.8
CRITICAL
EPSS Score
0.3 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Under specific conditions, an attacker can register an attacker-controlled FIDO2 credential against a target account and then authenticate as that user. This issue affects on-premises deployments only.
Technical details
- Published
- 2026-09-02
- Last Modified
- 2026-09-03
Frequently asked questions
What is CVE-2026-19117?
Under specific conditions, an attacker can register an attacker-controlled FIDO2 credential against a target account and then authenticate as that user. This issue affects on-premises deployments only.
Is CVE-2026-19117 actively exploited?
Active exploitation of CVE-2026-19117 has not been confirmed. Its EPSS score was 0.3% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-19117?
CVE-2026-19117 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2026-19117 affecting your environment?
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