CVE-2025-64325: emby before 4.8.1.0 (exclusive); +1 more affected products

CVE-2025-64325. CVSS 3.1 base score 9.0 (CRITICAL, NVD). EPSS 0.00418 (percentile 0.34611), scored 17-Oct-2026.

Affected technology

emby · before 4.8.1.0 (exclusive)
emby

Emby.Security · Emby Server (Web App) < 4.8.1.0, Emby Server Beta (Web App) < 4.9.0.0-beta
EmbySupport

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · Active user interaction

What an attacker can do

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. Vendor/CNA’s CVSS 4.0 assessment (base score 8.4/10) rates confidentiality and integrity impact as high; availability impact as none.

Published 18-Oct-2026 20:24 UTC

CWE: CWE-79, CWE-116
CCR priority: 36.1 /100 (P4)
CVSS 3.1: 9.0 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H · NVD
EPSS: 0.00418 · percentile 0.34611 · 2026-10-17
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-18 20:23:06.032219+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-64325.html