Back to Database
Status published
Medium
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 o
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-7048
Credits & Attribution
No credits recorded in the NVD database.
References
More from Arista Networks
View All →CVE-2025-8873
Arista EOS Dataplane Denial of Service via Malformed IPsec Packet
High
8.7
CVE-2025-8872
A specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted
High
7.1
CVE-2025-8870
On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.
Medium
5.6
CVE-2025-6980
Captive Portal can expose sensitive information
High
7.5
CVE-2025-6979
Captive Portal can allow authentication bypass
High
8.8
Affected Vendor
Arista Networks
View all reports →Affected Software
EOS
Vulnerable Versions:
4.34.3.0, 4.33.0, 4.32.0, 4.31.0, 0
Timeline
Official Publish:
January 6th, 2026
Last Modified:
January 6th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.