Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-23767

Severity CVSS v4.0:
Pending analysis
Type:
CWE-306 Missing Authentication for Critical Function
Publication date:
05/03/2026
Last modified:
09/03/2026

Description

ESC/POS, a printer control language designed by Seiko Epson Corporation, lacks mechanisms for user authentication and command authorization, does not provide controls to restrict sources or destinations of network communication, and transmits commands without encryption or integrity protection.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:epson:sb-h50_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:epson:sb-h50:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-h6000v_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:epson:tm-h6000v:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-l100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:epson:tm-l100:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m10_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:epson:tm-m10:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:epson:tm-m30:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30ii_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:epson:tm-m30ii:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30ii-h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:epson:tm-m30ii-h:-:*:*:*:*:*:*:*
cpe:2.3:o:epson:tm-m30ii-s_firmware:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools