Cisco NX-OS 4.2.x before 4.2(1)SV1(5.1) on Nexus 1000v series switches; 4.x and 5.0.x before 5.0(2)N1(1) on Nexus 5000 series switches; and 4.2.x before 4.2.8, 5.0.x before 5.0.5, and 5.1.x before 5.1.1 on Nexus 7000 series switches allows remote attackers to cause a denial of service (netstack process crash and device reload) via a malformed IP packet, aka Bug IDs CSCti23447, CSCti49507, and CSCtj01991
Published Feb 16, 2012
7.8
HIGHCVSS 2.0
EPSS 1.31%
Description
Cisco NX-OS 4.2.x before 4.2(1)SV1(5.1) on Nexus 1000v series switches; 4.x and 5.0.x before 5.0(2)N1(1) on Nexus 5000 series switches; and 4.2.x before 4.2.8, 5.0.x before 5.0.5, and 5.1.x before 5.1.1 on Nexus 7000 series switches allows remote attackers to cause a denial of service (netstack process crash and device reload) via a malformed IP packet, aka Bug IDs CSCti23447, CSCti49507, and CSCtj01991.
Affected products
No data.
Configuration 1
- 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\(1a\)
- 4.2\(1\)n1\(1\)
- 4.2\(1\)n2\(1\)
- 4.2\(1\)n2\(1a\)
- 4.2\(1\)sv1\(4\)
- 4.2\(1\)sv1\(4a\)
- n/a
Configuration 2
- 5.0\(2\)n2\(1\)
- 5.0\(2\)n2\(1a\)
- 5.0\(3\)n1\(1\)
- 5.0\(3\)n1\(1a\)
- 5.0\(3\)n1\(1b\)
- 5.0\(3\)n1\(1c\)
- 5.0\(3\)n2\(1\)
- 5.0\(3\)n2\(2\)
- 5.0\(3\)n2\(2a\)
- 5.0\(3\)n2\(2b\)
- 5.1\(3\)n1\(1\)
- 5.1\(3\)n1\(1a\)
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
Configuration 3
- 4.1.\(2\)
- 4.1.\(3\)
- 4.1.\(4\)
- 4.1.\(5\)
- 4.2\(1\)
- 4.2\(2\)
- 4.2\(3\)
- 4.2\(4\)
- 4.2\(6\)
- 4.2.\(2a\)
- 5.0\(2\)
- 5.0\(2a\)
- 5.0\(3\)
- 5.0\(3\)n1\(1\)
- 5.1\(1a\)
- 5.1\(2\)
- 5.1\(3\)
- 5.1\(4\)
- 5.1\(5\)
- 5.1\(6\)
- n/a
- n/a
- n/a
- 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 (12 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) | 67.22th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.43% (0.00427) | 60.26th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00161) | 54.06th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.14% (0.00137) | 48.64th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.13% (0.00127) | 46.29th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.11% (0.00115) | 43.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00161) | 50.92th | 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120215-nxos vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120215-nxos | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.