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CVE-2015-6321

🗓️ 06 Nov 2015 02:00:00Reported by ciscoType 
cve
 cve🔗 web.nvd.nist.gov👁 65 Views

CVE-2015-6321 Cisco AsyncOS before 8.5.7-042, 9.x before 9.1.0-032, 9.1.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-042 on Email Security Appliance (ESA) devices; before 9.1.0-032, 9.1.1 before 9.1.1-005, and 9.5.x before 9.5.0-025 on Content Security Management Appliance (SMA) devices; and before 7.7.0-725 and 8.x before 8.0.8-113 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (memory consumption) via a flood of TCP packets

Related
Detection
Refs
ReporterTitlePublishedViews
Family
Cisco		Cisco AsyncOS TCP Flood Denial of Service Vulnerability
4 Nov 201516:00
–cisco
Tenable Nessus		Cisco Email Security Appliance Multiple Vulnerabilities
18 Nov 201500:00
–nessus
Tenable Nessus		Cisco Content Security Management Appliance TCP Flood DoS (CSCus79777)
18 Nov 201500:00
–nessus
Tenable Nessus		Cisco Web Security Appliance Multiple Vulnerabilities
18 Nov 201500:00
–nessus
CNVD		Cisco AsyncOS Denial of Service Vulnerability (CNVD-2015-07404)
7 Nov 201500:00
–cnvd
Cvelist		CVE-2015-6321
6 Nov 201502:00
–cvelist
EUVD		EUVD-2015-6263
7 Oct 202500:30
–euvd
NVD		CVE-2015-6321
6 Nov 201503:59
–nvd
OpenVAS		Cisco Content Security Management Appliance AsyncOS TCP Flood Denial of Service Vulnerability (cisco-sa-20151104-aos)
6 Nov 201500:00
–openvas
OpenVAS		Cisco Email Security Appliance AsyncOS TCP Flood Denial of Service Vulnerability
6 Nov 201500:00
–openvas
Rows per page
NVD
Node
ciscoweb_security_applianceMatch5.6.0-623
OR
ciscoweb_security_applianceMatch6.0.0-000
OR
ciscoweb_security_applianceMatch7.5.0-000
OR
ciscoweb_security_applianceMatch7.5.0-825
OR
ciscoweb_security_applianceMatch7.5.1-000
OR
ciscoweb_security_applianceMatch7.5.2-000
OR
ciscoweb_security_applianceMatch7.7.0-000
OR
ciscoweb_security_applianceMatch7.7.1-000
OR
ciscoweb_security_applianceMatch8.0.0-000
OR
ciscoweb_security_applianceMatch8.5.0.000
Node
ciscocontent_security_management_applianceMatch7.8.0-328
OR
ciscocontent_security_management_applianceMatch7.8.1-001
OR
ciscocontent_security_management_applianceMatch7.9.0-201
OR
ciscocontent_security_management_applianceMatch7.9.2-116
OR
ciscocontent_security_management_applianceMatch8.0.1-031
OR
ciscocontent_security_management_applianceMatch8.1.0-001
OR
ciscocontent_security_management_applianceMatch8.1.1-033
OR
ciscocontent_security_management_applianceMatch8.1.2-000
OR
ciscocontent_security_management_applianceMatch8.2.0-238
OR
ciscocontent_security_management_applianceMatch8.3.0-350
OR
ciscocontent_security_management_applianceMatch8.3.5-061
OR
ciscocontent_security_management_applianceMatch8.3.6-014
OR
ciscocontent_security_management_applianceMatch8.3.7-010
OR
ciscocontent_security_management_applianceMatch8.4.0-150
OR
ciscocontent_security_management_applianceMatch9.0.0-073
OR
ciscocontent_security_management_applianceMatch9.1.0-004
Node
ciscoemail_security_applianceMatch7.6.1-000
OR
ciscoemail_security_applianceMatch7.6.3-000
OR
ciscoemail_security_applianceMatch7.7.0-000
OR
ciscoemail_security_applianceMatch7.7.1-000
OR
ciscoemail_security_applianceMatch7.8.0-311
OR
ciscoemail_security_applianceMatch8.5.6-052
OR
ciscoemail_security_applianceMatch8.6.0-011
OR
ciscoemail_security_applianceMatch8.9.1-000
OR
ciscoemail_security_applianceMatch8.9.2-032
OR
ciscoemail_security_applianceMatch9.0.0-212
OR
ciscoemail_security_applianceMatch9.0.5-000
OR
ciscoemail_security_applianceMatch9.1.0-011
OR
ciscoemail_security_applianceMatch9.4.4-000
OR
ciscoemail_security_applianceMatch9.5.0-000

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06 May 2026 22:30Current
6.6Medium risk
Vulners AI Score6.6
CVSS 27.8
EPSS0.00554
CWE-399
cve-2015-6321ciscoasyncosemail security applianceesacontent security management appliancesmaweb security appliancewsadenial of servicememory consumptiontcp packetsvulnerability
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