CVE-2019-18948 - CVE House
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Status published High CVE-2019-18948

An issue was found in Arista EOS. Specific malformed ARP...

Vulnerability Description

An issue was found in Arista EOS. Specific malformed ARP packets can impact the software forwarding of VxLAN packets. This issue is found in Arista’s EOS VxLAN code, which can allow attackers to crash the VxlanSwFwd agent. This affects EOS 4.21.8M and below releases in the 4.21.x train, 4.22.3M and below releases in the 4.22.x train, 4.23.1F and below releases in the 4.23.x train, and all releases in 4.15, 4.16, 4.17, 4.18, 4.19, 4.20 code train.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and...
Critical 9.8
CVE-2020-26569
In EVPN VxLAN setups in Arista EOS, specific malformed packets...
Medium 5.9
CVE-2020-24360
An issue with ARP packets in Arista’s EOS affecting the...
High 7.4
CVE-2020-24333
A vulnerability in Arista’s CloudVision Portal (CVP) prior to 2020.2...
Medium 6.5
CVE-2020-17355
Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M,...
High 7.5

Affected Vendor

Affected Software

eos
Vulnerable Versions:
4.21.0, 4.22.0, 4.23.0, 4.15, 4.16, 4.17, 4.18, 4.19, 4.20

Timeline

Official Publish: April 16th, 2020
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.