CVE-2026-73542: Improper Following of a Certificate's Chain of Trust in SEIKO EPSON CORPORATION Multiple SEIKO EPSON printers and scanners
Description
Multiple SEIKO EPSON printers and scanners contain revoked root certificates, which may allow a man-in-the-middle attack to intercept communication data. The vulnerability involves improper following of a certificate's chain of trust. The CVSS score is 3.7, indicating a low severity risk. No specific affected versions or patch information are provided in the available data.
CVSS v3.1
Score 3.7low
Affected software
SEIKO EPSON CORPORATION
Multiple SEIKO EPSON printers and scanners
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-73542 describes a vulnerability in multiple SEIKO EPSON printers and scanners where revoked root certificates are present. This improper handling of the certificate chain of trust could enable a man-in-the-middle attacker to obtain communication data transmitted by the affected products. The vulnerability has a CVSS v3.1 base score of 3.7, reflecting low impact on confidentiality with no impact on integrity or availability. No detailed version information or vendor patch advisory is provided in the input data.
Potential Impact
An attacker could perform a man-in-the-middle attack to intercept communication data transmitted by the affected SEIKO EPSON printers and scanners. The impact is limited to confidentiality loss with no reported impact on integrity or availability. The overall severity is low based on the CVSS score.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No vendor advisory or patch information is provided in the input data. Users should monitor SEIKO EPSON's official communications for updates and apply any official fixes once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jpcert
- Date Reserved
- 2026-08-17T04:36:05.953Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a868f2dacd9273b49262ab6
Added to database: 08/20/2026, 05:22:53 UTC
Last enriched: 09/11/2026, 05:33:01 UTC
Last updated: 10/04/2026, 10:02:29 UTC
Views: 83
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