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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 2.76% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- cisco/web security appliance · cisco/content security management appliance · cisco/email security appliance
- Source
- psirt@cisco.com
References
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151104-aosVendor Advisory
- http://www.securitytracker.com/id/1034060
- http://www.securitytracker.com/id/1034061
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151104-aosVendor Advisory
- http://www.securitytracker.com/id/1034060
- http://www.securitytracker.com/id/1034061
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.