CVE-2025-7048

On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the MACsec process to terminate unexpectedly. Continuous receipt of these packets with certain MACsec configurations can cause longer term disruption of dataplane traffic.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://www.arista.com/en/support/advisories-notices/security-advisory/23120-security-advisory-0132

Configurations

No configuration.

History

06 Jan 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-06 20:16

Updated : 2026-01-08 18:09

NVD link : CVE-2025-7048

Mitre link : CVE-2025-7048

CVE.ORG link : CVE-2025-7048

JSON object : View

Products Affected

No product.

CWE

CWE-805

Buffer Access with Incorrect Length Value

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