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CVE-2024-11185— On affected platforms running Arista EOS, ingress traffic on Layer 2 ports may, under certain conditions, be improperly forwarded to ports associated with different VLANs, resulting in a breach of VLAN isolation and segmentation boundaries.

Quick assessment

Affected
Arista Networks EOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Arista EOS是美国Arista公司的一个完全可编程的、高度模块化的、基于Linux的网络操作系统。 Arista EOS存在安全漏洞，该漏洞源于在某些条件下可能错误转发二层端口入口流量，导致VLAN隔离和分段边界被破坏。

CVSS 6.5 · Medium EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1046 · Network Service Discovery
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I. Basic Information for CVE-2024-11185

Vulnerability Information
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Vulnerability Title
On affected platforms running Arista EOS, ingress traffic on Layer 2 ports may, under certain conditions, be improperly forwarded to ports associated with different VLANs, resulting in a breach of VLAN isolation and segmentation boundaries.
Source: CVE Program / CVE List V5
Vulnerability Description
On affected platforms running Arista EOS, ingress traffic on Layer 2 ports may, under certain conditions, be improperly forwarded to ports associated with different VLANs, resulting in a breach of VLAN isolation and segmentation boundaries.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Arista EOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arista EOS是美国Arista公司的一个完全可编程的、高度模块化的、基于Linux的网络操作系统。 Arista EOS存在安全漏洞，该漏洞源于在某些条件下可能错误转发二层端口入口流量，导致VLAN隔离和分段边界被破坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Arista Networks EOS 4.29.0 ~ 4.29.10M -

II. Public POCs for CVE-2024-11185

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III. Intelligence Information for CVE-2024-11185

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Other References for CVE-2024-11185 (1)

Same Patch Batch · Arista Networks · 2025-05-27 · 3 CVEs total

CVE-2025-2796 5.3 MEDIUM On affected platforms with hardware IPSec support running Arista EOS with IPsec enabled an
CVE-2025-2826 2.6 LOW n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress AC

IV. Related Vulnerabilities

Same product: EOS
Same vendor: Arista Networks

V. Comments for CVE-2024-11185

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