HIGH
Cisco NX-OS 4.0 through 7.3 on Multilayer Director and Nexus 1000V, 2000, 3000, 3500, 4000, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote authenticated users to bypass intended AAA restrictions and obtain privileged CLI access via crafted parameters in an SSH connection negotiation, aka Bug IDs CSCum35502, CSCuw78669, CSCuw79754, and CSCux88492
Published Oct 6, 2016
8.0
HIGHCVSS 3.0
EPSS 2.75%
Description
Cisco NX-OS 4.0 through 7.3 on Multilayer Director and Nexus 1000V, 2000, 3000, 3500, 4000, 5000, 5500, 5600, 6000, 7000, 7700, and 9000 devices allows remote authenticated users to bypass intended AAA restrictions and obtain privileged CLI access via crafted parameters in an SSH connection negotiation, aka Bug IDs CSCum35502, CSCuw78669, CSCuw79754, and CSCux88492.
Affected products
No data.
Configuration 1
AND
OR
- 4.1.\(2\)
- 4.1.\(3\)
- 4.1.\(4\)
- 4.1.\(5\)
- 4.2\(3\)
- 4.2\(4\)
- 4.2\(6\)
- 4.2\(8\)
- 4.2.\(2a\)
- 5.0\(2a\)
- 5.0\(3\)
- 5.0\(5\)
- 5.1\(1\)
- 5.1\(1a\)
- 5.1\(3\)
- 5.1\(4\)
- 5.1\(5\)
- 5.1\(6\)
- 5.2\(1\)
- 5.2\(3a\)
- 5.2\(4\)
- 5.2\(5\)
- 5.2\(7\)
- 5.2\(9\)
- 6.0\(1\)
- 6.0\(2\)
- 6.0\(3\)
- 6.0\(4\)
- 6.1\(1\)
- 6.1\(2\)
- 6.1\(3\)
- 6.1\(4\)
- 6.1\(4a\)
- 6.2\(2\)
- 6.2\(2a\)
- 6.2\(6\)
- 6.2\(6b\)
- 6.2\(8\)
- 6.2\(8a\)
- 6.2\(8b\)
- 6.2\(10\)
- base
Running on/with
OR
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
Configuration 2
AND
OR
- 4.1\(2\)e1\(1\)
- 4.1\(2\)e1\(1b\)
- 4.1\(2\)e1\(1d\)
- 4.1\(2\)e1\(1e\)
- 4.1\(2\)e1\(1f\)
- 4.1\(2\)e1\(1g\)
- 4.1\(2\)e1\(1h\)
- 4.1\(2\)e1\(1i\)
- 4.1\(2\)e1\(1j\)
- base
Running on/with
- n/a
Configuration 3
AND
OR
- 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\(1a\)
- 4.1\(3\)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\(1a\)
- 5.0\(2\)n1\(1\)
- 5.0\(2\)n2\(1\)
- 5.0\(2\)n2\(1a\)
- 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\(1a\)
- 5.1\(3\)n2\(1\)
- 5.1\(3\)n2\(1a\)
- 5.1\(3\)n2\(1b\)
- 5.1\(3\)n2\(1c\)
- 5.2\(1\)n1\(1\)
- 5.2\(1\)n1\(1a\)
- 5.2\(1\)n1\(1b\)
- 5.2\(1\)n1\(2\)
- 5.2\(1\)n1\(2a\)
- 5.2\(1\)n1\(3\)
- 5.2\(1\)n1\(4\)
- 5.2\(1\)n1\(5\)
- 5.2\(1\)n1\(6\)
- 5.2\(1\)n1\(7\)
- 5.2\(1\)n1\(8\)
- 5.2\(1\)n1\(8a\)
- 6.0\(2\)n1\(1\)
- 6.0\(2\)n1\(2\)
- 6.0\(2\)n1\(2a\)
- 6.0\(2\)n2\(1\)
- 6.0\(2\)n2\(1b\)
- 6.0\(2\)n2\(2\)
- 6.0\(2\)n2\(4\)
- 6.0\(2\)n2\(5\)
- 7.0\(0\)n1\(1\)
- 7.0\(1\)n1\(1\)
- 7.0\(2\)n1\(1\)
- 7.0\(3\)n1\(1\)
- base
Running on/with
OR
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
Configuration 4
AND
OR
- 6.0\(2\)n1\(2\)
- 6.0\(2\)n1\(2a\)
- 6.0\(2\)n2\(1\)
- 6.0\(2\)n2\(1b\)
- 6.0\(2\)n2\(2\)
- 6.0\(2\)n2\(3\)
- 6.0\(2\)n2\(4\)
- 6.0\(2\)n2\(5\)
- 7.0\(0\)n1\(1\)
- 7.0\(1\)n1\(1\)
- 7.0\(2\)n1\(1\)
- 7.0\(3\)n1\(1\)
- base
Running on/with
OR
- n/a
- n/a
Configuration 5
AND
OR
- 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\(3d\)
- 4.2\(1\)sv1\(4\)
- 4.2\(1\)sv1\(4a\)
- 4.2\(1\)sv1\(4b\)
- 4.2\(1\)sv1\(5.1\)
- 4.2\(1\)sv1\(5.1a\)
- 4.2\(1\)sv1\(5.2\)
- 4.2\(1\)sv1\(5.2b\)
- 4.2\(1\)sv2\(1.1\)
- 4.2\(1\)sv2\(1.1a\)
- 4.2\(1\)sv2\(2.1\)
- 4.2\(1\)sv2\(2.1a\)
- 5.2\(1\)sm1\(5.1\)
- base
Running on/with
OR
- n/a
- n/a
Configuration 6
AND
OR
- 5.0\(3\)u1\(1\)
- 5.0\(3\)u1\(1a\)
- 5.0\(3\)u1\(1b\)
- 5.0\(3\)u1\(1d\)
- 5.0\(3\)u1\(2\)
- 5.0\(3\)u1\(2a\)
- 5.0\(3\)u2\(1\)
- 5.0\(3\)u2\(2\)
- 5.0\(3\)u2\(2a\)
- 5.0\(3\)u2\(2b\)
- 5.0\(3\)u2\(2c\)
- 5.0\(3\)u2\(2d\)
- 5.0\(3\)u3\(1\)
- 5.0\(3\)u3\(2\)
- 5.0\(3\)u3\(2a\)
- 5.0\(3\)u3\(2b\)
- 5.0\(3\)u4\(1\)
- 5.0\(3\)u5\(1\)
- 5.0\(3\)u5\(1a\)
- 5.0\(3\)u5\(1b\)
- 5.0\(3\)u5\(1c\)
- 5.0\(3\)u5\(1e\)
- 5.0\(3\)u5\(1f\)
- 5.0\(3\)u5\(1g\)
- 5.0\(3\)u5\(1h\)
- 6.0\(2\)u1\(1\)
- 6.0\(2\)u1\(1a\)
- 6.0\(2\)u1\(2\)
- 6.0\(2\)u1\(3\)
- 6.0\(2\)u1\(4\)
- 6.0\(2\)u2\(1\)
- 6.0\(2\)u2\(2\)
- 6.0\(2\)u2\(3\)
- 6.0\(2\)u2\(4\)
- 6.0\(2\)u2\(5\)
- 6.0\(2\)u2\(6\)
- 6.0\(2\)u3\(1\)
- 6.0\(2\)u3\(2\)
- 6.0\(2\)u3\(3\)
- 6.0\(2\)u3\(4\)
- 6.0\(2\)u3\(5\)
- 6.0\(2\)u4\(1\)
- 6.0\(2\)u4\(2\)
- 6.0\(2\)u4\(3\)
- 6.0\(2\)u5\(1\)
- base
Running on/with
OR
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
Configuration 7
AND
OR
- 6.1\(2\)i2\(1\)
- 6.1\(2\)i2\(2\)
- 6.1\(2\)i2\(2a\)
- 6.1\(2\)i2\(2b\)
- 6.1\(2\)i2\(3\)
- 6.1\(2\)i3\(1\)
- 6.1\(2\)i3\(2\)
- 6.1\(2\)i3\(3\)
- 11.0\(1b\)
- 11.0\(1c\)
- base
Running on/with
OR
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- 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.
8.0 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
9.0 HIGH NVD
AV:N/AC:L/Au:S/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.75% 0.02754
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02754
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.75% (0.02754) | 85.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.96% (0.01959) | 77.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.14% (0.00144) | 32.10th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00196) | 58.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00196) | 55.71th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.06% (0.01061) | 52.82th | v2 (v2022.01.01) |
| Sep 19, 2022 | 1.06% (0.01061) | 51.19th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.06% (0.01061) | 49.19th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.06% (0.01061) | 28.23th | v2 (v2022.01.01) |
Weaknesses (1)
References (3)
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-nxaaa vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securityfocus.com/bid/93410 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1036947 vdb-entryx_refsource_SECTRACK
| Link | Providers | Tags |
|---|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-nxaaa | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securityfocus.com/bid/93410 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1036947 | vdb-entryx_refsource_SECTRACK |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Oct 6, 2016
Updated Aug 6, 2024
Reserved Jan 7, 2015
Link CVE-2015-0721
CISA Vulnrichment
Updated n/a