CVE-2025-12049

Critical

Published: 22 December 2025

Published

22 December 2025

Modified

15 January 2026

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0011 29.3th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-12049 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Sharp Mp-01 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 29.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-14 (Permitted Actions Without Identification or Authentication) and AC-22 (Publicly Accessible Content).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

AC-14 Permitted Actions Without Identification or Authentication good match

prevent

AC-14 requires identification and restriction of critical actions performable without authentication, directly preventing unauthorized access to the web interface's sensitive functions.

AC-22 Publicly Accessible Content good match

prevent

AC-22 mandates restrictions on transactions over publicly accessible systems without identification or authentication, mitigating changes to settings via the exposed web interface.

IA-8 Identification and Authentication (Non-organizational Users) good match

prevent

IA-8 enforces unique identification and authentication for non-organizational users, countering unauthenticated access by external attackers to the device's web interface.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

The vulnerability allows network-accessible exploitation of a public-facing web interface with missing authentication, directly enabling T1190: Exploit Public-Facing Application.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

Missing Authentication for Critical Function vulnerability in Sharp Display Solutions Media Player MP-01 All Verisons allows a attacker may access to the web interface of the affected product without authentication and change settings or perform other operations, and deliver content…

from the authoring software to the affected product without authentication.

Deeper analysisAI

CVE-2025-12049 is a Missing Authentication for Critical Function vulnerability (CWE-306) affecting all versions of the Sharp Display Solutions Media Player MP-01. Published on 2025-12-22, it carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting its critical severity due to the lack of authentication mechanisms protecting sensitive operations.

A network-accessible attacker requires no privileges, user interaction, or special conditions to exploit this vulnerability. Successful exploitation grants unauthorized access to the device's web interface, enabling the attacker to change settings, perform arbitrary operations, and deliver content from authoring software without authentication.

Mitigation details are available in the vendor advisory at https://sharp-displays.jp.sharp/global/support/info/MP01-CVE-2025-12049.html.