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CVE-2026-23767

Quick assessment

Affected
Seiko Epson Corporation ESC/POS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

EPSON ESC/POS是日本爱普生（EPSON）公司的一个用于控制POS打印机的协议。 EPSON ESC/POS存在访问控制错误漏洞，该漏洞源于缺少用户身份验证和命令授权机制、未提供网络通信源或目标限制控制以及传输命令时未加密或提供完整性保护。

AI Predicted 5.3 Difficulty: Easy EPSS 0.46% · P39
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I. Basic Information for CVE-2026-23767

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
EPSON ESC/POS 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EPSON ESC/POS是日本爱普生（EPSON）公司的一个用于控制POS打印机的协议。 EPSON ESC/POS存在访问控制错误漏洞，该漏洞源于缺少用户身份验证和命令授权机制、未提供网络通信源或目标限制控制以及传输命令时未加密或提供完整性保护。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Seiko Epson Corporation ESC/POS All products implementing ESC/POS -

II. Public POCs for CVE-2026-23767

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III. Intelligence Information for CVE-2026-23767

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Vendor Advisories for CVE-2026-23767 (2)

IV. Related Vulnerabilities

Same vendor: Seiko Epson Corporation
Same weakness: CWE-306

V. Comments for CVE-2026-23767

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