CVE-2016-2403

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Symfony before 2.8.6 and 3.x before 3.0.6 allows remote attackers to bypass authentication by logging in with an empty password and valid username, which triggers an unauthenticated bind.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://symfony.com/blog/cve-2016-2403-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-passwordVendor Advisory
http://www.securityfocus.com/bid/96137Third Party Advisory, VDB Entry
https://www.debian.org/security/2018/dsa-4262
http://symfony.com/blog/cve-2016-2403-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-passwordVendor Advisory
http://www.securityfocus.com/bid/96137Third Party Advisory, VDB Entry
https://www.debian.org/security/2018/dsa-4262

Timeline

Published: Feb 7, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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