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CVE-2026-73467— On affected platforms running Arista EOS, under certain circumstances plaintext shared secrets for configured Terminal Access Controller Access-Control System Plus (TACACS+) servers

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 的受影响平台上，在特定情况下，已配置的终端访问控制器访问控制系统 Plus（TACACS+）服务器的明文共享密钥

CVSS 6.3 · Medium

Affected Version Matrix 6

VendorProduct Version RangeStatus
Arista Networks EOS 4.36.0≤ 4.36.1F affected
4.35.0≤ 4.35.4M affected
4.34.0≤ 4.34.7M affected
0.0.0≤ 4.33.9M affected
≤ 4.32.0 affected
≤ 4.31.0 affected
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I. Basic Information for CVE-2026-73467

Vulnerability Information
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Vulnerability Title
On affected platforms running Arista EOS, under certain circumstances plaintext shared secrets for configured Terminal Access Controller Access-Control System Plus (TACACS+) servers
Source: CVE Program / CVE List V5
Vulnerability Description
On affected platforms running Arista EOS, under certain circumstances plaintext shared secrets for configured Terminal Access Controller Access-Control System Plus (TACACS+) servers
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
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-2026-73467

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III. Intelligence Information for CVE-2026-73467

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Vendor Advisories for CVE-2026-73467 (1)

Same Patch Batch · Arista Networks · 2026-09-15 · 12 CVEs total

CVE-2026-73437 9.6 CRITICAL On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) r
CVE-2026-73458 8.2 HIGH On affected platforms running Arista EOS with authenticated Bidirectional Forwarding Detec
CVE-2026-73459 7.4 HIGH Security Advisory 0160
CVE-2026-73446 7.4 HIGH Security Advisory 0160
CVE-2026-19655 6.5 MEDIUM On affected platforms running Arista EOS with Dynamic Host Configuration Protocol (DHCP) r
CVE-2026-73466 6.3 MEDIUM On affected platforms running Arista EOS, under certain circumstances plaintext user passw
CVE-2026-73465 6.3 MEDIUM On affected platforms running Arista EOS, under certain circumstances plaintext private ke
CVE-2026-73460 6.1 MEDIUM Security Advisory 0160
CVE-2026-19641 5.3 MEDIUM On affected platforms running Arista EOS with password authentication configured, a specia
CVE-2026-73451 4.8 MEDIUM On affected platforms running Arista EOS with dual switch cards and with ingress Security
CVE-2026-73444 4.7 MEDIUM On affected platforms running Arista EOS with VRRPv2 IP Authentication Header (IP-AH) auth

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-73467

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