Cisco NAC allows quarantined devices to communicate over the network with (1) DNS, (2) DHCP, and (3) EAPoUDP, which allows attackers to bypass control methods by tunneling network traffic through one of these protocols
Published Sep 26, 2006
7.5
HIGHCVSS 2.0
EPSS 1.34%
Description
Cisco NAC allows quarantined devices to communicate over the network with (1) DNS, (2) DHCP, and (3) EAPoUDP, which allows attackers to bypass control methods by tunneling network traffic through one of these protocols.
Affected products
No data.
- 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:P/I:P/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 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 | 1.34% (0.01340) | 70.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.26% (0.01256) | 65.54th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.36% (0.00365) | 56.38th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.41% (0.00409) | 74.68th | v3 (v2023.03.01) |
| Feb 19, 2024 | 0.41% (0.00409) | 73.21th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.38% (0.00383) | 72.31th | v3 (v2023.03.01) |
| Jul 30, 2023 | 0.38% (0.00383) | 69.46th | v3 (v2023.03.01) |
| May 15, 2023 | 0.35% (0.00348) | 67.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.36% (0.00356) | 67.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
No CWE recorded.
References (3)
- http://www.insightix.com/files/pdf/Bypassing_NAC_Solutions_Whitepaper.pdf x_refsource_MISC
- http://www.osvdb.org/30977 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/archive/1/446421/100/0/threaded mailing-listx_refsource_BUGTRAQ
| Link | Providers | Tags |
|---|---|---|
| http://www.insightix.com/files/pdf/Bypassing_NAC_Solutions_Whitepaper.pdf | x_refsource_MISC | |
| http://www.osvdb.org/30977 | vdb-entryx_refsource_OSVDB | |
| http://www.securityfocus.com/archive/1/446421/100/0/threaded | mailing-listx_refsource_BUGTRAQ |
Change history (0)
No recorded changes yet.