5.3

CVE-2020-15898: arista eos

CVSS: 5.3v3.1MediumModified
Published 28-12-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-15898 is a medium (CVSS 5.3) vulnerability in arista eos. EPSS estimates a 0.99% chance of exploitation in the next 30 days, higher than 61.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.99%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 28-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

In Arista EOS malformed packets can be incorrectly forwarded across VLAN boundaries in one direction. This vulnerability is only susceptible to exploitation by unidirectional traffic (ex. UDP) and not bidirectional traffic (ex. TCP). This affects: EOS 7170 platforms version 4.21.4.1F and below releases in the 4.21.x train; EOS X-Series versions 4.21.11M and below releases in the 4.21.x train; 4.22.6M and below releases in the 4.22.x train; 4.23.4M and below releases in the 4.23.x train; 4.24.2.1F and below releases in the 4.24.x train.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.99%

Chance of exploitation in the next 30 days

Percentile

62%

Versus all other CVEs

30-day change

+0.01 pp

From 0.97% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.99%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (arista.com)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Arista1 product
  • eos≥ 4.21.0f, ≤ 4.21.4.1f | ≥ 4.21.0f, ≤ 4.21.11m | ≥ 4.22.0f, ≤ 4.22.6m | ≥ 4.23.0f, ≤ 4.23.4m | ≥ 4.24.0f, ≤ 4.24.2.1f

1 vendor · 1 product

References

1 links