CVE-2021-25827
CVSS v3
9.8
CRITICAL
EPSS Score
1.5 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Emby Server < 4.7.12.0 is vulnerable to a login bypass attack by setting the X-Forwarded-For header to a local IP-address.
Technical details
- Published
- 2023-06-28
Frequently asked questions
What is CVE-2021-25827?
Emby Server < 4.7.12.0 is vulnerable to a login bypass attack by setting the X-Forwarded-For header to a local IP-address.
Is CVE-2021-25827 actively exploited?
Active exploitation of CVE-2021-25827 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-25827?
CVE-2021-25827 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-25827 affecting your environment?
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