---
id: CVE-2026-0516
title: >-
  A improper neutralization of HTTP Headers for Scripting Syntax vulnerability
  in SonicOS could allow a remote attacker to manipulate the Host header and
  redirect firewall management users to arbitrary web domains.
summary: >-
  A improper neutralization of HTTP Headers for Scripting Syntax vulnerability
  in SonicOS could allow a remote attacker to manipulate the Host header and
  redirect firewall management users to arbitrary web domains.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-644
published: '2026-08-05'
updated: '2026-08-28'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-0516'
references:
  - url: 'https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0009'
    label: PSIRT@sonicwall.com
tags:
  - nvd
epss: 0.00205
epssPercentile: 0.10774
ingestedAt: '2026-08-29T16:39:13.747Z'
---

## Overview

A improper neutralization of HTTP Headers for Scripting Syntax vulnerability in SonicOS could allow a remote attacker to manipulate the Host header and redirect firewall management users to arbitrary web domains.

## Remediation

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