CVE-2015-6321

high Cisco
CVSS v3 Base Score
7.8
AV:N/AC:L/Au:N/C:N/I:N/A:C
EPSS Score
0.6%
Exploitation probability in 30 days
Top 32% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Confidentiality
None
Integrity
None
Availability
C
Published: November 6, 2015 (3842 days ago)
Last Modified: May 6, 2026
Vendor: Cisco
Source: NVD

Description

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, aka Bug IDs CSCus79774, CSCus79777, and CSCzv95795.

CWE

CWE-399

Affected Products

cisco web security appliancecisco content security management appliancecisco email security appliance

References

🔗 tools.cisco.com 🔗 www.securitytracker.com 🔗 www.securitytracker.com 🔗 tools.cisco.com 🔗 www.securitytracker.com