---
id: "CVE-2026-82308"
page: "https://infrastack.ai/live/CVE-2026-82308"
kind: "vulnerability"
aliases: ["CVE-2026-82308"]
title: "SonicWall SonicOS SSL-VPN: pre-auth heap overflow allows remote denial of service"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["firewall", "infrastructure", "sonicos", "sonicwall", "ssl-vpn"]
not_affected_if: ["unknown"]
published_at: "2026-11-06T19:17:57+00:00"
first_seen_at: "2026-11-06T19:43:49+00:00"
updated_at: "2026-11-06T19:46:03+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82308", "first_seen_at": "2026-11-06T19:43:49+00:00"}]
exploit_sources: []
---

# SonicWall SonicOS SSL-VPN: pre-auth heap overflow allows remote denial of service

Link for people: https://infrastack.ai/live/CVE-2026-82308 (this .md is for agents)

A heap-based buffer overflow in the SonicOS SSL-VPN service can be triggered before login. A remote unauthenticated attacker could crash the service and cause an application-level denial of service.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-06T19:43:49+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-82308

## From the sources

A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS SSL-VPN service, which could potentially enable a remote unauthenticated attacker to cause an application level denial of service.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_