CVE-2015-4236

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Summary

CVECVE-2015-4236
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-07-10 19:59:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionCisco 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.

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

AV:N/AC:M/Au:N/C:N/I:N/A:P

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Email Security Appliance 8.5.6-074 All All All
Operating System Cisco Email Security Appliance Firmware 8.5.6-073 All All All
Operating System Cisco Email Security Appliance Firmware 9.0.0-461 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Cisco AsyncOS for Email Security and Web Security Appliances Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Cisco AsyncOS for Cisco Email Security Appliance and Cisco Web Security Appliance Cluster Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Vendor Advisory
Cisco Email Security Appliance Packet Processing Flaw on Clustering and SSH Ports Lets Remote Users Deny Service - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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