Cisco Enterprise NFV Infrastructure Software VNC Authentication Bypass Vulnerability
Published Aug 7, 2019
9.8
CRITICALCVSS 3.1
EPSS 2.28%
Description
A vulnerability in the Virtual Network Computing (VNC) console implementation of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to access the VNC console session of an administrative user on an affected device. The vulnerability is due to an insufficient authentication mechanism used to establish a VNC session. An attacker could exploit this vulnerability by intercepting an administrator VNC session request prior to login. A successful exploit could allow the attacker to watch the administrator console session or interact with it, allowing admin access to the affected device.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<3.12.1
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco Enterprise NFV Infrastructure Software | n/a |
|
- < 3.12.1
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Nov 19, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.28% (0.02285) | 82.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.28% (0.02285) | 80.84th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.38% (0.02382) | 83.56th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.08% (0.05085) | 82.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.38% (0.02382) | 83.89th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.49% (0.00490) | 76.34th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.49% (0.00490) | 75.40th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.49% (0.00490) | 73.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.51% (0.00509) | 72.94th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.03% (0.09029) | 86.86th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.30% (0.02304) | 53.71th | v5 (v2026.06.15) |
| Jan 6, 2022 | 2.30% (0.02304) | 53.25th | v1 |
| Sep 1, 2021 | 0.52% (0.00523) | 32.27th | v1 |
| Apr 14, 2021 | 0.52% (0.00523) | 0.00th | v1 |
References (1)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-nfvis-vnc-authbypass vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-nfvis-vnc-authbypass | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.