CVE-2026-73542: Improper Following of a Certificate's Chain of Trust in SEIKO EPSON CORPORATION Multiple SEIKO EPSON printers and scanners
Multiple SEIKO EPSON printers and scanners contain revoked root certificates, which may allow a man-in-the-middle attacker 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 by the vendor at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-73542) affects multiple SEIKO EPSON printers and scanners that include revoked root certificates. Due to improper validation of the certificate chain of trust, an attacker performing a man-in-the-middle attack could potentially obtain communication data transmitted by the affected devices. The vulnerability has a CVSS 3.1 base score of 3.7, reflecting low impact on confidentiality and no impact on integrity or availability. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
An attacker may be able to intercept communication data between the affected SEIKO EPSON devices and other systems by exploiting the improper certificate chain validation. The impact is limited to confidentiality with no reported impact on integrity or availability. The overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should be cautious about network environments where man-in-the-middle attacks are possible. No official fixes or workarounds have been published by SEIKO EPSON CORPORATION at this time.
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 attacker 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 by the vendor at this time.
CVSS v3.1
Score 3.7low
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-73542) affects multiple SEIKO EPSON printers and scanners that include revoked root certificates. Due to improper validation of the certificate chain of trust, an attacker performing a man-in-the-middle attack could potentially obtain communication data transmitted by the affected devices. The vulnerability has a CVSS 3.1 base score of 3.7, reflecting low impact on confidentiality and no impact on integrity or availability. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
An attacker may be able to intercept communication data between the affected SEIKO EPSON devices and other systems by exploiting the improper certificate chain validation. The impact is limited to confidentiality with no reported impact on integrity or availability. The overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should be cautious about network environments where man-in-the-middle attacks are possible. No official fixes or workarounds have been published by SEIKO EPSON CORPORATION at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jpcert
- Date Reserved
- 2026-08-17T04:36:05.953Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a868f2dacd9273b49262ab6
Added to database: 08/20/2026, 05:22:53 UTC
Last enriched: 08/20/2026, 05:38:28 UTC
Last updated: 08/20/2026, 06:04:35 UTC
Views: 4
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