CVE-2021-25827 is a critical login bypass vulnerability affecting Emby Server versions prior to 4.7.12.0. An unauthenticated attacker can exploit this by manipulating the X-Forwarded-For header to a local IP address, gaining full control over the server. With a CVSS score of 9.8, this vulnerability presents a high risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential impact remains severe.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.7.12.0CPE matchmatch criteria | cpe:2.3:a:emby:emby:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.