MEDIUM
Arista EOS through 4.21.0F allows a crash because 802.1x authentication is mishandled
Published Aug 15, 2019
6.5
MEDIUMCVSS 3.0
EPSS 0.61%
Description
Arista EOS through 4.21.0F allows a crash because 802.1x authentication is mishandled.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
3.3 LOW NVD
AV:A/AC:L/Au:N/C:N/I:N/A:P
Access Vector Adjacent
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.
0.61% 0.00606
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00606
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.61% (0.00606) | 47.13th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.61% (0.00606) | 47.66th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.07% (0.00065) | 28.86th | v3 (v2023.03.01) |
| Jun 15, 2024 | 0.07% (0.00065) | 28.43th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00065) | 26.43th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
Weaknesses (1)
References (2)
- https://www.arista.com/en/support/advisories-notices x_refsource_MISCVendor Advisory
- https://www.arista.com/en/support/advisories-notices/security-advisories/6072-security-advisory-38 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.arista.com/en/support/advisories-notices | x_refsource_MISCVendor Advisory | |
| https://www.arista.com/en/support/advisories-notices/security-advisories/6072-security-advisory-38 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 15, 2019
Updated Aug 5, 2024
Reserved Jul 12, 2018
Link CVE-2018-14008
CISA Vulnrichment
Updated n/a