Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 through 8.4 allow remote attackers to cause a denial of service (connection limit exceeded) by triggering a large number of stale connections that result in an incorrect value for an MPF connection count, aka Bug ID CSCtv19854
Published May 3, 2012
7.8
HIGHCVSS 2.0
EPSS 1.31%
Description
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 through 8.4 allow remote attackers to cause a denial of service (connection limit exceeded) by triggering a large number of stale connections that result in an incorrect value for an MPF connection count, aka Bug ID CSCtv19854.
Affected products
No data.
- 8.0
- 8.0\(2\)
- 8.0\(3\)
- 8.0\(4\)
- 8.0\(5\)
- 8.0.2
- 8.0.3
- 8.0.4
- 8.0.5
- 8.1
- 8.2\(1\)
- 8.2\(2\)
- 8.2\(3\)
- 8.2\(3.9\)
- 8.2\(4\)
- 8.2\(4.1\)
- 8.2\(4.4\)
- 8.2\(5\)
- 8.2.1
- 8.2.2
- 8.2.2
- 8.2.3
- 8.3\(1\)
- 8.3\(2\)
- 8.3.1
- 8.3.1
- 8.3.2
- 8.4
- 8.4\(1\)
- 8.4\(1.11\)
- 8.4\(2\)
- 8.4\(2.11\)
- n/a
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.31% (0.01313) | 69.65th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.33% (0.01328) | 67.21th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.43% (0.00427) | 60.26th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00181) | 56.62th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.14% (0.00145) | 49.69th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.13% (0.00133) | 47.48th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.12% (0.00121) | 45.10th | v3 (v2023.03.01) |
| Mar 24, 2023 | 0.18% (0.00181) | 53.60th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00228) | 59.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (1)
- http://www.cisco.com/web/software/280775065/89203/ASA-843-Interim-Release-Notes.html x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| http://www.cisco.com/web/software/280775065/89203/ASA-843-Interim-Release-Notes.html | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.