Is CVE-2025-64325 actively exploited?

No active exploitation of CVE-2025-64325 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-64325 be exploited remotely?

Yes. CVE-2025-64325 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-64325?

CVE-2025-64325 has a CVSS score of 9.0 (CRITICAL).

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CRITICAL

CVE-2025-64325

CWE-79Published: November 18, 2025· Updated: Jun 17, 2026

9.0

CVSS v3.1

Official 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.

NVD Source

Risk Analysis

This critical vulnerability in Emby Server allows a malicious user to inject unsanitized data into the admin dashboard via a manipulated authentication request. With a CVSS score of 9.0, this flaw could lead to high impact on confidentiality, integrity, and availability. The lack of an EPSS score means its exploitation likelihood is unknown, but the high CVSS score indicates urgency.

No public exploit is currently known for this vulnerability. Exploitation requires user interaction and low privileges.

Recommended Action

Upgrade Emby Server to version 4.8.1.0 or Beta version 4.9.0.0-beta or later to address this vulnerability. Ensure all user input is properly sanitized before being displayed or stored.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-64325 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.