SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-23767

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…

CRITICAL 9.8EPSS 0.46%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.46% probability · 40th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-306
Affected
epson/sb-h50 firmware · epson/tm-h6000v firmware · epson/tm-l100 firmware · epson/tm-m10 firmware · epson/tm-m30 firmware · epson/tm-m30ii firmware · epson/tm-m30ii-h firmware · epson/tm-m30ii-s firmware · epson/tm-m30ii-sl firmware · epson/tm-m30iii firmware · epson/tm-m30iii-h firmware · epson/tm-m55 firmware · epson/tm-p20ii firmware · epson/tm-p80ii firmware · epson/tm-p20 firmware · epson/tm-p60ii firmware · epson/tm-p80 firmware · epson/tm-t20ii firmware · epson/tm-t20iii firmware · epson/tm-t88vi firmware · +4 more
Source
vultures@jpcert.or.jp
EPSS trend
0%3%5%26 October 2026: 0.46%26 October 202626 October 2026

EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.