CVE-2026-0516: SonicOS 6.5.5.2-28n and older versions, 7.0.1-5169 and older versions, 7.3.3-7015 and older versions, 8.2.1-8010 and…

CVE-2026-0516. CVSS 3.1 base score 6.5 (MEDIUM, Source advisory). EPSS 0.00342 (percentile 0.26503), scored 22-Oct-2026.

Affected technology

SonicOS · 6.5.5.2-28n and older versions, 7.0.1-5169 and older versions, 7.3.3-7015 and older versions, 8.2.1-8010 and older versions
SonicWall

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

A remote attacker could manipulate the Host header and redirect firewall management users to arbitrary web domains. Source advisory’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality and integrity impact as low; availability impact as none.

Published 24-Oct-2026 01:44 UTC

CWE: CWE-644
CCR priority: 26.1 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N · Source advisory
EPSS: 0.00342 · percentile 0.26503 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-0516.html