CVE-2015-6386

Name: CVE-2015-6386
Creator: NVD / NIST
Published: 2015-12-01T11:59:03.143+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.74%

Last modified Jun 17, 2026

CVE-2015-6386 is a vulnerability of currently unknown severity. The passthrough FTP feature on Cisco Web Security Appliance (WSA) devices with software 8.0.7-142 and 8.5.1-021 allows remote attackers to cause a denial of service (CPU consumption) via FTP sessions in which the control connection is ended after data transfer, aka Bug ID CSCut94150.. EPSS estimates a 1.74% chance of exploitation in the next 30 days.

Description

The passthrough FTP feature on Cisco Web Security Appliance (WSA) devices with software 8.0.7-142 and 8.5.1-021 allows remote attackers to cause a denial of service (CPU consumption) via FTP sessions in which the control connection is ended after data transfer, aka Bug ID CSCut94150.

Metrics

EPSS Probability

1.74%

74.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Web Security Appliance	8.0.7-142
Cisco	Web Security Appliance	8.5.1-021

References

Timeline

Published: Dec 1, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6386?

How severe is CVE-2015-6386?

Severity scoring for CVE-2015-6386 is pending analysis. The EPSS model estimates a 1.74% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6386?

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-2015-6386?

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

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Source: NVD / NIST