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No exploitation reportedAwaiting NVD analysis

CVE-2026-102166

Security Advisory 0227

No exploitation reported by the sources we read.

  • Published2026-11-10
  • WeaknessCWE-798

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Arista C-260 and C-250 access points ship with fleet-wide static cryptographic keys used for firmware image verification and SSLP authentication. An attacker who is able to access these keys would be able to create modified firmware that will pass verification checks. This vulnerability is specific to the C-260 and C-250 models; other access point models enforce digitally signed upgrade images with secure boot and are not affected by this issue.

Timeline

dates in UTC
  1. 2026-11-1020:09CVE publishedCNA

Versions per branch

Products declared by the CNA

As Arista, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Arista Networks Wi-Fi Access Pointother versions: affected

    platforms: Wi-Fi Access Points C-260, Wi-Fi Access Points C-250

    Affected
    • ≥ 1.0.0no fix statedcustom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-10

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-102166 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-11-10
  • CNACVSS 4.09.42026-11-10
  • CNACVSS 3.18.82026-11-10
  • CNAweakness (CWE)CWE-7982026-11-10

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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:X
Published
2026-11-10
Last Modified
2026-11-10
NVD status
Received

Frequently asked questions

What is CVE-2026-102166?

Arista C-260 and C-250 access points ship with fleet-wide static cryptographic keys used for firmware image verification and SSLP authentication. An attacker who is able to access these keys would be able to create modified firmware that will pass verification checks. This vulnerability is specific to the C-260 and C-250 models; other access point models enforce digitally signed upgrade images with secure boot and are not affected by this issue.

Is CVE-2026-102166 actively exploited?

Active exploitation of CVE-2026-102166 has not been confirmed.

What is the CVSS score for CVE-2026-102166?

CVE-2026-102166 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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