CVE-2013-2271

Severity: high (CVSS 7.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-11-19 · updated 2026-06-16
Weakness: CWE-264

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.

Affected products

Dlink Dsl-2740B: all versions
Dlink Dsl-2740B Firmware: all versions

References

http://packetstormsecurity.com/files/120613/dlinkdsl2740b-bypass.txt
http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10004
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
http://packetstormsecurity.com/files/120613/dlinkdsl2740b-bypass.txt
http://securityadvisories.dlink.com/security/publication.aspx?name=SAP10004
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

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