Medium 6.5Published Aug 5, 2026

CVE-2026-0516A 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…

Updated under an hour ago (Oct 26, 2026, 7:40 PM ET)

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Every CVE for SonicWall SonicOS

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-644
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: sonicwall
NVD analysis: Awaiting Analysis
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

SonicWall SonicOS sonicwall:sonicos (from the name)	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	CNA record

References

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0009	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.