CVE-2016-6356

HIGH

Cisco Email Security Appliance - Denial of Service via Email Message Filtering

Title source: llm
STIX 2.1

Description

A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to cause an affected device to stop scanning and forwarding email messages due to a denial of service (DoS) condition. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is configured to apply a message filter or content filter to incoming email attachments. The vulnerability is not limited to any specific rules or actions for a message filter or content filter. More Information: CSCuz63143. Known Affected Releases: 8.5.7-042 9.7.0-125. Known Fixed Releases: 10.0.0-125 9.1.1-038 9.7.2-047.

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1037122
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/93907

Scores

CVSS v3 7.5
EPSS 0.0300
EPSS Percentile 85.7%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (50)
cisco/email_security_appliance 3.3.1-09
cisco/email_security_appliance 7.1.0
cisco/email_security_appliance 7.1.1
cisco/email_security_appliance 7.1.2
cisco/email_security_appliance 7.1.3
cisco/email_security_appliance 7.1.4
cisco/email_security_appliance 7.1.5
cisco/email_security_appliance 7.3.0
cisco/email_security_appliance 7.3.1
cisco/email_security_appliance 7.3.2
... and 40 more
Published Oct 28, 2016
Tracked Since Feb 18, 2026