CVE-2016-6465

Name: CVE-2016-6465
Creator: NVD / NIST
Published: 2016-12-14T00:59:04.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.56%

Last modified Jun 17, 2026

CVE-2016-6465 is a vulnerability of currently unknown severity. A vulnerability in the content filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances and Cisco Web Security Appliances could allow an unauthenticated, remote attacker to bypass user filters that are configured for an affected device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for both virtual and hardware versions of the following Cisco products: Cisco Email Security Appliances (ESAs) that are configured to use message or content filters that scan incoming email attachments; Cisco Web Security Appliances (WSAs) that are configured to use services that scan accessed web content. EPSS estimates a 1.56% chance of exploitation in the next 30 days.

Description

A vulnerability in the content filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances and Cisco Web Security Appliances could allow an unauthenticated, remote attacker to bypass user filters that are configured for an affected device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for both virtual and hardware versions of the following Cisco products: Cisco Email Security Appliances (ESAs) that are configured to use message or content filters that scan incoming email attachments; Cisco Web Security Appliances (WSAs) that are configured to use services that scan accessed web content. More Information: CSCva90076, CSCvb06764. Known Affected Releases: 10.0.0-125 8.5.7-042 9.7.2-047.

Metrics

EPSS Probability

1.56%

72.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Cisco	Email Security Appliance	8.5.7-042
Cisco	Email Security Appliance	9.7.2-047
Cisco	Email Security Appliance	10.0.0-125
Cisco	Email Security Appliance	10.0.0-232

References

http://www.securityfocus.com/bid/94901Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037404Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-esaVendor Advisory
http://www.securityfocus.com/bid/94901Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037404Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-esaVendor Advisory

Timeline

Published: Dec 14, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6465?

How severe is CVE-2016-6465?

Severity scoring for CVE-2016-6465 is pending analysis. The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6465?

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-2016-6465?

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

Scan your code now

Source: NVD / NIST