CVE-2018-11407

Name: CVE-2018-11407
Creator: NVD / NIST
Published: 2018-06-13T16:29:01.047+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.34%

Last modified Jun 17, 2026

CVE-2018-11407 is a vulnerability of currently unknown severity. An issue was discovered in the Ldap component in Symfony 2.8.x before 2.8.37, 3.3.x before 3.3.17, 3.4.x before 3.4.7, and 4.0.x before 4.0.7. It allows remote attackers to bypass authentication by logging in with a "null" password and valid username, which triggers an unauthenticated bind. EPSS estimates a 2.34% chance of exploitation in the next 30 days.

Description

An issue was discovered in the Ldap component in Symfony 2.8.x before 2.8.37, 3.3.x before 3.3.17, 3.4.x before 3.4.7, and 4.0.x before 4.0.7. It allows remote attackers to bypass authentication by logging in with a "null" password and valid username, which triggers an unauthenticated bind. NOTE: this issue exists because of an incomplete fix for CVE-2016-2403.

Metrics

EPSS Probability

2.34%

81.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Sensiolabs	Symfony	>= 2.8.0, < 2.8.37
Sensiolabs	Symfony	>= 3.3.0, < 3.3.17
Sensiolabs	Symfony	>= 3.4.0, < 3.4.7
Sensiolabs	Symfony	>= 4.0.0, < 4.0.7

References

Timeline

Published: Jun 13, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-11407?

How severe is CVE-2018-11407?

Severity scoring for CVE-2018-11407 is pending analysis. The EPSS model estimates a 2.34% probability of exploitation in the next 30 days.

How do I fix CVE-2018-11407?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-11407?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST