CVE-2025-64325

CRITICAL

Emby Server <4.8.1.0-4.9.0.0-beta - Info Disclosure

Title source: llm
STIX 2.1

Description

Emby Server is a personal media server. Prior to version 4.8.1.0 and prior to Beta version 4.9.0.0-beta, a malicious user can send an authentication request with a manipulated X-Emby-Client value, which gets added to the devices section of the admin dashboard without sanitization. This issue has been patched in version 4.8.1.0 and Beta version 4.9.0.0-beta.

References (1)

Scores

CVSS v3 9.0
EPSS 0.0007
EPSS Percentile 20.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-79 CWE-116
Status published
Products (1)
emby/emby < 4.8.1.0
Published Nov 18, 2025
Tracked Since Feb 18, 2026