CVE-2015-4236

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-07-10 · updated 2026-06-17
Weakness: CWE-399

Description

Cisco AsyncOS on Email Security Appliance (ESA) devices with software 8.5.6-073, 8.5.6-074, and 9.0.0-461, when clustering is enabled, allows remote attackers to cause a denial of service (clustering and SSH outage) via a packet flood, aka Bug IDs CSCur13704 and CSCuq05636.

Affected products

Cisco Email Security Appliance (ESA): 8.5.6-074
Cisco Email Security Appliance: 8.5.6-073, 9.0.0-461

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=39785
http://www.securityfocus.com/bid/75703
http://www.securitytracker.com/id/1032855
http://tools.cisco.com/security/center/viewAlert.x?alertId=39785
http://www.securityfocus.com/bid/75703
http://www.securitytracker.com/id/1032855

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