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CVE-2019-18948

HIGH

7.5

CVSS Score

Published: April 16, 2020 at 04:52 PM UTC

Updated: June 17, 2026 at 02:25 AM UTC

1 product affected across 1 vendorEos

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Severity

HIGH7.5

Exploit prediction

EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

95%

4.21.0 ≤ v ≤ 4.21.8m4.22.0 ≤ v ≤ 4.22.3m4.23.0 ≤ v ≤ 4.23.1f4.15 4.16 4.17 4.18 4.19 4.20

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.arista.com/en/support/advisories-notices/security-advisories/10292-security-advisory-47

References (1)

x_refsource_CONFIRMPatchVendor Advisory

Source: [email protected]

https://www.arista.com/en/support/advisories-notices/security-advisories/10292-security-advisory-47

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

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