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CVE-2026-86107— Security Advisory 0180

Quick assessment

Affected
Arista Networks VeloCloud
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.

The VeloCloud Edge and Gateway exhibit an out-of-bounds write vulnerability when processing tunneled IP fragments between authenticated overlay neighbors. This vulnerability impacts the VeloCloud VCMP tunnel protocol only. A successful exploit can cause the af

CVSS 5.9 · Medium
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I. Basic Information for CVE-2026-86107

Vulnerability Information

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Vulnerability Title
Security Advisory 0180
Source: CVE Program / CVE List V5
Vulnerability Description
The VeloCloud Edge and Gateway exhibit an out-of-bounds write vulnerability when processing tunneled IP fragments between authenticated overlay neighbors. This vulnerability impacts the VeloCloud VCMP tunnel protocol only. A successful exploit can cause the affected process to terminate and restart, leading to a temporary disruption of traffic. Hosts on the internet that are unauthenticated and unable to form an overlay peer relationship can not trigger the vulnerable logic.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Arista Networks VeloCloud 1.0.0.0 ~ 5.2.0.0 -
Arista Networks VeloCloud Gateway 1.0.0.0 ~ 5.2.0.0 -

II. Public POCs for CVE-2026-86107

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III. Intelligence Information for CVE-2026-86107

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Other References for CVE-2026-86107 (1)

Same Patch Batch · Arista Networks · 2026-09-16 · 23 CVEs total

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-2026-73439 7.5 HIGH Security Advisory 0164
CVE-2026-73455 7.5 HIGH Security Advisory 0173
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-2026-73436 6.5 MEDIUM Security Advisory 0171
CVE-2026-73468 6.5 MEDIUM Security Advisory 0175
CVE-2026-77190 6.5 MEDIUM Security Advisory 0177
CVE-2026-73469 5.8 MEDIUM Security Advisory 0176
CVE-2026-73463 5.3 MEDIUM Security Advisory 0169
CVE-2026-73438 5.3 MEDIUM Security Advisory 0172
CVE-2026-73445 4.9 MEDIUM Security Advisory 0167

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: Arista Networks
Same weakness: CWE-787

V. Comments for CVE-2026-86107

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