CVE-2026-73542

Revoked Root Certificates Enable Man‑in‑The‑Middle Data Capture on SEIKO EPSON Devices

Published Aug 20, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
Multiple SEIKO EPSON printers and scanners contain revoked root certificates. A man-in-the-middle attack may allow an attacker to obtain communication data transmitted by the product. As for the details of the affected products and versions, refer to the vendor's information.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Seiko Epson Corporation
Seiko Epson Corporation multiple Seiko Epson Printers And Scanners
Vendors & Products Seiko Epson Corporation
Seiko Epson Corporation multiple Seiko Epson Printers And Scanners
Type Values Removed Values Added
Title Revoked Root Certificates Enable Man‑in‑The‑Middle Data Capture on SEIKO EPSON Devices
Type Values Removed Values Added
Description Multiple SEIKO EPSON printers and scanners contain revoked root certificates. A man-in-the-middle attack may allow an attacker to obtain communication data transmitted by the product. As for the details of the affected products and versions, refer to the vendor's information.
Weaknesses CWE-296
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
jpcert
Published
Updated
Aug 20, 2026, 3:26 PM
Reserved
Aug 17, 2026, 4:36 AM
Status
Deferred
Published
Aug 20, 2026, 6:17 AM
Modified
Aug 28, 2026, 4:09 PM