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CVE-2018-14008

20
FAUCET Score

CVE-2018-14008 describes a denial-of-service vulnerability in Arista EOS through version 4.21.0F, stemming from improper handling of 802.1x authentication. This medium-severity flaw (CVSS 6.5) can be exploited by an unauthenticated attacker on the adjacent network with low complexity, leading to a system crash and impacting availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.21.0fCPE matchmatch criteria
cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 71st percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

arista.com / en/support/advisories-notices
Vendor Advisory
arista.com / en/support/advisories-notices/security-advisories/6072-security-advisory-38
Vendor Advisory