Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of service (supervisor CPU consumption) via Authentication Header (AH) authentication in a Virtual Router Redundancy Protocol (VRRP) frame, aka Bug ID CSCte27874
Published Nov 8, 2013
5.0
MEDIUMCVSS 2.0
EPSS 1.90%
Description
Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of service (supervisor CPU consumption) via Authentication Header (AH) authentication in a Virtual Router Redundancy Protocol (VRRP) frame, aka Bug ID CSCte27874.
Affected products
No data.
- ≤ 5.0
- 4.0
- 4.0\(0\)n1\(1a\)
- 4.0\(0\)n1\(2\)
- 4.0\(0\)n1\(2a\)
- 4.0\(1a\)n1\(1\)
- 4.0\(1a\)n1\(1a\)
- 4.0\(1a\)n2\(1\)
- 4.0\(1a\)n2\(1a\)
- 4.0\(4\)sv1\(1\)
- 4.0\(4\)sv1\(2\)
- 4.0\(4\)sv1\(3\)
- 4.0\(4\)sv1\(3a\)
- 4.0\(4\)sv1\(3b\)
- 4.0\(4\)sv1\(3c\)
- 4.0\(4\)sv1\(3d\)
- 4.1\(3\)n1\(1\)
- 4.1\(3\)n1\(1a\)
- 4.1\(3\)n2\(1\)
- 4.1\(3\)n2\(1a\)
- 4.1.\(2\)
- 4.1.\(3\)
- 4.1.\(4\)
- 4.1.\(5\)
- 4.2
- 4.2\(1\)
- 4.2\(1\)n1\(1\)
- 4.2\(1\)n2\(1\)
- 4.2\(1\)n2\(1a\)
- 4.2\(1\)sv1\(4\)
- 4.2\(1\)sv1\(4a\)
- 4.2\(1\)sv1\(5.1\)
- 4.2\(2\)
- 4.2\(3\)
- 4.2\(4\)
- 4.2\(6\)
- 4.2\(8\)
- 4.2.\(2a\)
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:P
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 2, 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.90% (0.01901) | 78.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.88% (0.01885) | 76.72th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.29% (0.01286) | 78.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00181) | 56.68th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.15% (0.00155) | 51.19th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.14% (0.00143) | 49.02th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.13% (0.00129) | 46.50th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00186) | 54.19th | 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 (2)
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5566 vendor-advisoryx_refsource_CISCOVendor Advisory
- http://tools.cisco.com/security/center/viewAlert.x?alertId=31663 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5566 | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://tools.cisco.com/security/center/viewAlert.x?alertId=31663 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.