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CVE-2013-4366

CRITICALCVSS 9.8/10EPSS 2.18%

Last modified

CVE-2013-4366 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. http/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not ensure that X509HostnameVerifier is not null, which allows attackers to have unspecified impact via vectors involving hostname verification.. EPSS estimates a 2.18% chance of exploitation in the next 30 days.

Description

http/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not ensure that X509HostnameVerifier is not null, which allows attackers to have unspecified impact via vectors involving hostname verification.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.18%

80.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ApacheHttpclient4.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2013-4366?
http/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not ensure that X509HostnameVerifier is not null, which allows attackers to have unspecified impact via vectors involving hostname verification.
How severe is CVE-2013-4366?
CVE-2013-4366 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.18% probability of exploitation in the next 30 days.
How do I fix CVE-2013-4366?
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-2013-4366?

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

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Source: NVD / NIST