---
id: "CVE-2024-53704"
kind: "vulnerability"
aliases: ["CVE-2024-53704"]
title: "sonicwall sonicos: An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass\u2026"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "SonicWall SonicOS", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "sonicwall sonicos", "fixed": [], "affected": ">= 7.1.1-7040, <= 7.1.1-7058", "ecosystem": "vendor"}, {"name": "sonicwall sonicos", "fixed": [], "affected": "= 7.1.2-7019", "ecosystem": "vendor"}, {"name": "sonicwall sonicos", "fixed": [], "affected": "= 8.0.0-8035", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "firewall", "infrastructure", "ransomware", "sonicos", "sonicwall", "sslvpn"]
not_affected_if: ["no-sonicos-sslvpn"]
published_at: "2025-01-09T07:15:27+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-53704", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53704", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# sonicwall sonicos: An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass…

SonicWall SonicOS SSLVPN has an authentication bypass flaw that lets a remote attacker get past login. It is listed in CISA's known-exploited catalog and tagged as used in ransomware campaigns.

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

## Affected

- vendor:SonicWall SonicOS affected ? fixed ?
- vendor:sonicwall sonicos affected >= 7.1.1-7040, <= 7.1.1-7058 fixed ?
- vendor:sonicwall sonicos affected = 7.1.2-7019 fixed ?
- vendor:sonicwall sonicos affected = 8.0.0-8035 fixed ?

## Fix

Apply the mitigations per SonicWall vendor instructions, or discontinue use of the SSLVPN feature if mitigations are unavailable (per CISA required action).

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-53704
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2024-53704

## From the sources

SonicWall SonicOS contains an improper authentication vulnerability in the SSLVPN authentication mechanism that allows a remote attacker to bypass authentication.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_