CVE-2026-23767
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductEpson Sb-h50 Firmware
PublishedMar 5, 2026
First seenMar 5, 2026
Weakness typeCWE-306Missing authentication for critical function
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| epson sb-h50_firmware | No range specified | — |
| epson tm-h6000v_firmware | No range specified | — |
| epson tm-l100_firmware | No range specified | — |
| epson tm-m10_firmware | No range specified | — |
| epson tm-m30_firmware | No range specified | — |
| epson tm-m30ii_firmware | No range specified | — |
| epson tm-m30ii-h_firmware | No range specified | — |
| epson tm-m30ii-s_firmware | No range specified | — |
| epson tm-m30ii-sl_firmware | No range specified | — |
| epson tm-m30iii_firmware | No range specified | — |
| epson tm-m30iii-h_firmware | No range specified | — |
| epson tm-m55_firmware | No range specified | — |
| epson tm-p20ii_firmware | No range specified | — |
| epson tm-p80ii_firmware | No range specified | — |
| epson tm-p20_firmware | No range specified | — |
| epson tm-p60ii_firmware | No range specified | — |
| epson tm-p80_firmware | No range specified | — |
| epson tm-t20ii_firmware | No range specified | — |
| epson tm-t20iii_firmware | No range specified | — |
| epson tm-t88vi_firmware | No range specified | — |
| epson tm-t88vi-ihub_firmware | No range specified | — |
| epson tm-t88vii_firmware | No range specified | — |
| epson ub-r04_firmware | No range specified | — |
| epson ub-e04_firmware | No range specified | — |
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