CVE-2026-23767

CRITICAL 9.8

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	seiko epson corporation
Product	esc/pos
Published	Mar 5, 2026
Last Updated	Mar 6, 2026

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Affected Versions

Seiko Epson Corporation / ESC/POS

All products implementing ESC/POS

References

NVD ↗ CVE.org ↗ EPSS Data ↗

epson.jp: https://www.epson.jp/support/misc_t/260305_oshirase.htm download4.epson.biz: https://download4.epson.biz/sec_pubs/bs/pdf/IP_Filtering_Guide_en_revA.pdf jvn.jp: https://jvn.jp/en/ta/JVNTA97995322/