CVE-2026-73542

lowCVSS 3.7covered by 2 sourcesfirst seen 2026-08-20

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.

CSIRTS triage

vendor: SEIKO EPSONMisconfiguration

What: Multiple SEIKO EPSON printers and scanners contain revoked root certificates that remain embedded in the device firmware.
Who is affected: SEIKO EPSON printer and scanner users with affected device models.
Urgency: Medium priority; revoked certificates weaken device security and trust validation mechanisms.
Action: Contact SEIKO EPSON support for firmware updates removing revoked root certificates or implementing certificate pinning workarounds for CVE-2026-73542.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.

Advisory coverage (2)

lowCVE-2026-73542: Multiple SEIKO EPSON printers and scanners contain revoked root certificates. A man-in-the-mid…nvd · 2026-08-20
unknownMultiple SEIKO EPSON printers and scanners keep already revoked root certificatesjvn · 2026-08-20

External references

NVD record for CVE-2026-73542

CVE.org record

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