CVE-2015-6421

high Cisco
CVSS v3 Base Score
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.5%
Exploitation probability in 30 days
Top 33% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: January 27, 2016 (3759 days ago)
Last Modified: May 6, 2026
Vendor: Cisco
Source: NVD

Description

cifs-ao in the CIFS optimization functionality on Cisco Wide Area Application Service (WAAS) and Virtual WAAS (vWAAS) devices 5.x before 5.3.5d and 5.4 and 5.5 before 5.5.3 allows remote attackers to cause a denial of service (resource consumption and device reload) via crafted network traffic, aka Bug ID CSCus85330.

CWE

CWE-399

Affected Products

cisco wide area application services

References

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