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CVE-2026-73442— On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving for

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.

在运行 Arista EOS 且启用了 VRRP 的受影响平台上，对等设备的 VRRP 认证凭据以明文形式记录在交换机日志中。这意味着拥有足够权限的用户（能够查看代理追踪日志，或接收转发日志输出的系统）可以获取对等设备的 VRRP 认证凭据，而无需直接访问 VRRP 所运行的网络段。

CVSS 3.0 · Low EPSS 0.21% · P11

Affected Version Matrix 4

VendorProduct Version RangeStatus
Arista Networks EOS 4.36.0≤ 4.36.1F affected
4.35.0≤ 4.35.5M affected
4.34.0≤ 4.34.7M affected
4.33.0≤ 4.33.9M affected
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I. Basic Information for CVE-2026-73442

Vulnerability Information
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Vulnerability Title
On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving for
Source: CVE Program / CVE List V5
Vulnerability Description
On affected platforms running Arista EOS with VRRP enabled, the peer device VRRP authentication credentials are logged in cleartext on the switch, allowing an authenticated user with sufficient privileges to view agent trace logs (or a system receiving forwarded log output) to obtain the peer device VRRP authentication credentials without having access to the network segment on which VRRP is running.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Arista Networks EOS 4.36.0 ~ 4.36.1F -

II. Public POCs for CVE-2026-73442

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III. Intelligence Information for CVE-2026-73442

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Vendor Advisories for CVE-2026-73442 (1)

Same Patch Batch · Arista Networks · 2026-09-16 · 28 CVEs total

CVE-2026-73456 10.0 CRITICAL Under certain circumstances, an unauthenticated gNPSI client can craft a malicious request
CVE-2026-73453 10.0 CRITICAL Security Advisory 0174
CVE-2026-86106 9.6 CRITICAL Security Advisory 0179
CVE-2026-73447 9.1 CRITICAL Security Advisory 0162 - gNSI Certz/Bootz OS Command Injection via Crafted Rotate Request
CVE-2026-73464 8.8 HIGH Security Advisory 0166
CVE-2026-73435 8.2 HIGH Security Advisory 0171
CVE-2026-73454 8.1 HIGH Security Advisory 0165
CVE-2026-86108 8.0 HIGH Security Advisory 0181
CVE-2026-73461 8.0 HIGH Security Advisory 0163
CVE-2026-73455 7.5 HIGH Security Advisory 0173
CVE-2026-73439 7.5 HIGH Security Advisory 0164
CVE-2026-2380 7.4 HIGH Security Advisory 0168
CVE-2026-73450 6.9 MEDIUM Security Advisory 0161
CVE-2026-86109 6.6 MEDIUM Security Advisory 0182
CVE-2026-73462 6.5 MEDIUM On affected platforms running Arista EOS with IGMP (Internet Group Management Protocol) sn
CVE-2026-77190 6.5 MEDIUM Security Advisory 0177
CVE-2026-73468 6.5 MEDIUM Security Advisory 0175
CVE-2026-73436 6.5 MEDIUM Security Advisory 0171
CVE-2026-86107 5.9 MEDIUM Security Advisory 0180
CVE-2026-73469 5.8 MEDIUM Security Advisory 0176

Showing top 20 of 28 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: EOS
Same vendor: Arista Networks
Same weakness: CWE-532