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
Published Nov 6, 2015
7.8
HIGHCVSS 2.0
EPSS 2.76%
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.
Affected products
No data.
Configuration 1
- 5.6.0-623
- 6.0.0-000
- 7.5.0-000
- 7.5.0-825
- 7.5.1-000
- 7.5.2-000
- 7.7.0-000
- 7.7.1-000
- 8.0.0-000
- 8.5.0.000
Configuration 2
- 7.8.0-328
- 7.8.1-001
- 7.9.0-201
- 7.9.2-116
- 8.0.1-031
- 8.1.0-001
- 8.1.1-033
- 8.1.2-000
- 8.2.0-238
- 8.3.0-350
- 8.3.5-061
- 8.3.6-014
- 8.3.7-010
- 8.4.0-150
- 9.0.0-073
- 9.1.0-004
Configuration 3
- 7.6.1-000
- 7.6.3-000
- 7.7.0-000
- 7.7.1-000
- 7.8.0-311
- 8.5.6-052
- 8.6.0-011
- 8.9.1-000
- 8.9.2-032
- 9.0.0-212
- 9.0.5-000
- 9.1.0-011
- 9.4.4-000
- 9.5.0-000
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.76% (0.02764) | 85.77th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.76% (0.02764) | 84.33th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.01% (0.01007) | 75.51th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.56% (0.00563) | 78.47th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.56% (0.00563) | 77.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.56% (0.00563) | 74.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (3)
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151104-aos vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securitytracker.com/id/1034060 vdb-entryx_refsource_SECTRACK
- http://www.securitytracker.com/id/1034061 vdb-entryx_refsource_SECTRACK
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151104-aos | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securitytracker.com/id/1034060 | vdb-entryx_refsource_SECTRACK | |
| http://www.securitytracker.com/id/1034061 | vdb-entryx_refsource_SECTRACK |
Change history (0)
No recorded changes yet.