MEDIUM
Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a Spanning Tree Protocol (STP) blocked port, which causes a network storm and a denial of service
Published Sep 18, 2001
5.0
MEDIUMCVSS 2.0
EPSS 1.44%
Description
Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a Spanning Tree Protocol (STP) blocked port, which causes a network storm and a denial of service.
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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.44% 0.01435
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01435
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.44% (0.01435) | 72.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.44% (0.01435) | 69.53th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.50% (0.00503) | 64.03th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.29% (0.00290) | 69.84th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00290) | 68.11th | v3 (v2023.03.01) |
| Aug 19, 2023 | 0.29% (0.00290) | 65.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.30% (0.00299) | 64.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (4)
- http://www.ciac.org/ciac/bulletins/l-072.shtml third-party-advisorygovernment-resourcex_refsource_CIAC
- http://www.cisco.com/warp/public/707/cat5k-8021x-vuln-pub.shtml vendor-advisoryx_refsource_CISCOPatchVendor Advisory
- http://www.securityfocus.com/bid/2604 vdb-entryx_refsource_BIDPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6379 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www.ciac.org/ciac/bulletins/l-072.shtml | third-party-advisorygovernment-resourcex_refsource_CIAC | |
| http://www.cisco.com/warp/public/707/cat5k-8021x-vuln-pub.shtml | vendor-advisoryx_refsource_CISCOPatchVendor Advisory | |
| http://www.securityfocus.com/bid/2604 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/6379 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 18, 2001
Updated Aug 8, 2024
Reserved May 24, 2001
Link CVE-2001-0429
CISA Vulnrichment
Updated n/a