CVE-2026-86106

criticalpriority · track · 0OT risk · elevatedEPSS 0.004 · 29 %ileDENL
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.36% (29th) EPSS
CVSS 9.6 · critical
Is it mine?
6 products
Check your exposure
Who says so?
2 sources
cert_bund · ncsc_nl

EPSS · scored 2026-10-27

An unauthenticated actor with network access to the private HA interconnect may trigger sensitive HA peer functions without verification. This could result in elevated command execution on Edge units where HA is enabled.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.6
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.3–9.6

v3.19.6criticalCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · psirt@arista.comexploitability 2.8 · impact 6
v3.19.6criticalCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · NCSC-NL NL
v4.08.7highCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · psirt@arista.com
v4.06.3mediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306US
04

affected products (6)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0404Kwetsbaarheden verholpen in WatchGuard Fireware OSNL2026-10-07csaf · ncsc_nlNL

    WatchGuard heeft meerdere kwetsbaarheden verholpen in Fireware OS.

  • WID-SEC-W-2026-3287Arista EOS: Mehrere SchwachstellenDeutsch2026-09-09csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Arista EOS ausnutzen, um erweiterte Berechtigungen, sogar Administratorrechte, zu erlangen, beliebigen Code, einschließlich Root-Code, auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen sowie Denial-of-Service-Zustände herbeizuführen.

06

sources

Which sources assert this record, and when.

cert_bundncsc_nlNVDCVE.orgMITRE
published 2026-09-16modified 2026-09-16
07

references (1) nvd

External citations — patches, advisories, analysis.

scry

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