Security Advisory 0134

Security Advisory 0134 PDF Date: February 17, 2026 Revision | Date | Changes ---|---|--- 1.0 | February 17, 2026 | Initial release The CVE-ID tracking this issue: CVE-2026-2379 CVSSv3.1 Base Score: 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Common Weakness Enumeration: CWE-672: Operation on...

CVE-2022-26300

EOS v2.1.0 was discovered to contain a heap-buffer-overflow via the function txntestgenplugin...

CVE-2019-18948

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 a...

Arista Networks EOS Buffer Overflow (SA0132)

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. Note that Nessus has...

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...

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

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...

Arista EOS 安全漏洞

Arista EOS is a fully programmable, highly modular, Linux-based network operating system from Arista Corporation. A security vulnerability exists in Arista EOS that stems from specially crafted packets that can cause the MACsec process to terminate unexpectedly, potentially resulting in a prolong...

PT-2026-1501

Name of the Vulnerable Software and Affected Versions Arista EOS affected versions not specified Description A specially crafted packet can cause the MACsec process to terminate unexpectedly on affected platforms running Arista EOS with MACsec configuration. Continuous receipt of these packets wi...

Security Advisory 0132

Security Advisory 0132 . CSAF PDF Date: December 30, 2025 Revision | Date | Changes ---|---|--- 1.0 | December 30, 2025 | Initial release 1.1 | February 3, 2026 | Updated Required Configuration for Exploitation The CVE-ID tracking this issue: CVE-2025-7048 CVSS:3.1 Base Score 4.3...

EUVD-2025-203841

On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted. This may cause disruption in the OSFPv3 routes on the switch. This issue was discovered...

CVE-2025-8872

This CVE affects Arista EOS with OSPFv3 configured. A specially crafted IPv6 OSPFv3 packet can cause the ospfv3 process to have high CPU utilization, potentially restarting the process and disrupting OSPFv3 routes. The Arista advisory lists affected EOS trains: 4.34.x (4.34.1F and below), 4.33.x ...

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

On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted. This may cause disruption in the OSFPv3 routes on the switch. This issue was discovered...

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

On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted. This may cause disruption in the OSFPv3 routes on the switch. This issue was discovered...

PT-2025-51781

On affected platforms running Arista EOS with OSPFv3 configured, a specially crafted packet can cause the OSFPv3 process to have high CPU utilization which may result in the OSFPv3 process being restarted. This may cause disruption in the OSFPv3 routes on the switch. This issue was discovered...

Arista EOS 安全漏洞

Arista EOS is a fully programmable, highly modular, Linux-based network operating system from Arista Corporation. A security vulnerability exists in Arista EOS that stems from specially crafted packets that could lead to excessive CPU utilization of the OSFPv3 process, potentially resulting in a...

Security Advisory 0128

Security Advisory 0128 PDF Date: December 16, 2025 Revision | Date | Changes ---|---|--- 1.0 | December 16, 2025 | Initial release The CVE-ID tracking this issue: CVE-2025-8872 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 6.5 / 10 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N 7....

Vulnerabilities fixed in Arista EOS

Arista has fixed vulnerabilities in the Arista EOS platform. The vulnerabilities are related to the processing of malformed messages, which can lead to system crashes and denial-of-service conditions. High-privileged attackers can exploit these vulnerabilities, leading to severe operational...

Security Advisory 0127

Security Advisory 0127 . CSAF PDF Date: November 18, 2025 Revision | Date | Changes ---|---|--- 1.0 | November 18, 2025 | Initial release The CVE-ID tracking this issue: CVE-2025-8873 CVSSv3.1 Base Score: 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSSv4.0 Base Score 8.7...

CVE-2025-8870

On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.153...

CVE-2025-8870 On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.

On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device.153...