---
id: CVE-2026-76470
title: >-
  As part of Cisco's ongoing commitment to proactive security and product
  quality, the Cisco networking engineering team has conducted a comprehensive
  internal security review
summary: >-
  As part of Cisco's ongoing commitment to proactive security and product
  quality, the Cisco networking engineering team has conducted a comprehensive
  internal security review. This review resulted in a software hardening release
  that addr…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-682
vendor: Cisco
product: Cisco Campus Gateway Software
affected:
  - campus_gateway_software CG 33.1.3
  - meraki_mr_wireless_access_points_software MR 33.1.2
  - meraki_mr_wireless_access_points_software MR 30.6
  - meraki_mr_wireless_access_points_software MR 32.1.7
  - meraki_mr_wireless_access_points_software MR 32.2.3
  - meraki_mr_wireless_access_points_software MR 32.2.4
  - meraki_mr_wireless_access_points_software MR 33.1.1
  - meraki_mv_firmware 4.20
  - meraki_mv_firmware 5.0
  - meraki_mv_firmware 5.1
  - meraki_mv_firmware 5.2
  - meraki_mv_firmware 5.3
  - meraki_mv_firmware 5.4
  - meraki_mv_firmware 5.4.1
  - meraki_mv_firmware 5.5
  - meraki_mv_firmware 5.5.1
  - meraki_mv_firmware 5.6
  - meraki_mv_firmware 5.6.1
  - meraki_mv_firmware 6.0
  - meraki_mv_firmware 6.0.1
  - meraki_mv_firmware 5.6.2
  - meraki_mv_firmware 6.0.2
  - meraki_mv_firmware 6.1
  - meraki_mv_firmware 6.1.1
  - meraki_mv_firmware 6.1.2
  - meraki_mv_firmware 6.2
  - meraki_mv_firmware 6.2.1
  - meraki_mv_firmware 6.2.2
  - meraki_mv_firmware 6.3
  - meraki_mv_firmware 6.3.2
  - meraki_mv_firmware 2.0
  - meraki_mv_firmware 2.1
  - meraki_mv_firmware 2.2
  - meraki_mv_firmware 3.0
  - meraki_mv_firmware 3.1
  - meraki_mv_firmware 3.2
  - meraki_mv_firmware 3.3
  - meraki_mv_firmware 3.4
  - meraki_mv_firmware 3.5
  - meraki_mv_firmware 3.6
  - meraki_mv_firmware 3.7
  - meraki_mv_firmware 3.8
  - meraki_mv_firmware 3.9
  - meraki_mv_firmware 3.10
  - meraki_mv_firmware 3.11
  - meraki_mv_firmware 3.12
  - meraki_mv_firmware 3.13
  - meraki_mv_firmware 3.14
  - meraki_mv_firmware 3.15
  - meraki_mv_firmware 3.16
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T17:17:00.043'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76470'
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-meraki-os-drbEX9GH
    label: psirt@cisco.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-07T16:38:22.240Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-07T18:01:53.181320Z'
---

## Overview

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco networking engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-76470 are related to incorrect calculation issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-682.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.