HIGH
Cisco switches that support 802.1x security allow remote attackers to bypass port security and gain access to the VLAN via spoofed Cisco Discovery Protocol (CDP) messages
Published Jun 14, 2005
7.5
HIGHCVSS 2.0
EPSS 1.58%
Description
Cisco switches that support 802.1x security allow remote attackers to bypass port security and gain access to the VLAN via spoofed Cisco Discovery Protocol (CDP) messages.
Affected products
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.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.58% 0.01585
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.01585
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 2, 2026 | 1.58% (0.01585) | 74.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.58% (0.01585) | 72.32th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.45% (0.00447) | 61.41th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.48% (0.00483) | 76.74th | v3 (v2023.03.01) |
| May 21, 2024 | 0.48% (0.00483) | 75.92th | v3 (v2023.03.01) |
| Mar 20, 2024 | 0.62% (0.00617) | 78.31th | v3 (v2023.03.01) |
| Oct 4, 2023 | 0.62% (0.00617) | 76.30th | v3 (v2023.03.01) |
| May 5, 2023 | 1.23% (0.01234) | 83.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.74% (0.01741) | 85.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (5)
- http://marc.info/?l=bugtraq&m=111842833009771&w=2 mailing-listx_refsource_BUGTRAQ
- http://www.cisco.com/warp/public/707/cisco-sn-20050608-8021x.shtml vendor-advisoryx_refsource_CISCO
- http://www.fishnetsecurity.com/csirt/disclosure/cisco/Cisco+802.1x+Advisory.pdf x_refsource_MISCVendor Advisory
- http://www.securitytracker.com/alerts/2005/Jun/1014135.html vdb-entryx_refsource_SECTRACKVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/20939 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://marc.info/?l=bugtraq&m=111842833009771&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://www.cisco.com/warp/public/707/cisco-sn-20050608-8021x.shtml | vendor-advisoryx_refsource_CISCO | |
| http://www.fishnetsecurity.com/csirt/disclosure/cisco/Cisco+802.1x+Advisory.pdf | x_refsource_MISCVendor Advisory | |
| http://www.securitytracker.com/alerts/2005/Jun/1014135.html | vdb-entryx_refsource_SECTRACKVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/20939 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jun 14, 2005
Updated Aug 7, 2024
Reserved Jun 14, 2005
Link CVE-2005-1942
CISA Vulnrichment
Updated n/a