---
id: CVE-2025-40597
title: >-
  A Heap-based buffer overflow vulnerability in the SMA100 series web interface
  allows remote, unauthenticated attacker to cause Denial of Service (DoS) or
  potentially results in code execution.
summary: >-
  A Heap-based buffer overflow vulnerability in the SMA100 series web interface
  allows remote, unauthenticated attacker to cause Denial of Service (DoS) or
  potentially results in code execution.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: adp
cwe:
  - CWE-122
vendor: SonicWall
product: SMA 100 Series
affected:
  - sma_100_series 10.2.1.15-81sv and earlier versions
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2025-07-25T03:55:22.115090Z'
published: '2025-07-23'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T22:03:00.512Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-40597'
references:
  - url: 'https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0012'
tags:
  - cve.org
epss: 0.22684
epssPercentile: 0.97733
ingestedAt: '2026-11-05T20:33:06.554Z'
---

## Overview

A Heap-based buffer overflow vulnerability in the SMA100 series web interface allows remote, unauthenticated attacker to cause Denial of Service (DoS) or potentially results in code execution.

## Affected

- `sma_100_series 10.2.1.15-81sv and earlier versions`

## Remediation

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