CVE-2015-6309

Name: CVE-2015-6309
Creator: NVD / NIST
Published: 2015-10-02T15:59:03.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.70%

Last modified Jun 17, 2026

CVE-2015-6309 is a vulnerability of currently unknown severity. Cisco Email Security Appliance (ESA) 8.5.6-106 and 9.6.0-042 allows remote authenticated users to cause a denial of service (file-descriptor consumption and device reload) via crafted HTTP requests, aka Bug ID CSCuw32211.. EPSS estimates a 1.70% chance of exploitation in the next 30 days.

Description

Cisco Email Security Appliance (ESA) 8.5.6-106 and 9.6.0-042 allows remote authenticated users to cause a denial of service (file-descriptor consumption and device reload) via crafted HTTP requests, aka Bug ID CSCuw32211.

Metrics

EPSS Probability

1.70%

74.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Email Security Appliance	9.6.0-042
Cisco	Email Security Appliance Firmware	8.5.6-106

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=41241Vendor Advisory
http://www.securitytracker.com/id/1033716Third Party Advisory, VDB Entry
http://tools.cisco.com/security/center/viewAlert.x?alertId=41241Vendor Advisory
http://www.securitytracker.com/id/1033716Third Party Advisory, VDB Entry

Timeline

Published: Oct 2, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6309?

How severe is CVE-2015-6309?

Severity scoring for CVE-2015-6309 is pending analysis. The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6309?

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-2015-6309?

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

Scan your code now

Source: NVD / NIST