SonicOS firewalls
CVE-2022-22275: Improper Restriction of TCP Communication Channel in HTTP/S inbound traffic from WAN to DMZ bypassing secur…
Improper Restriction of TCP Communication Channel in HTTP/S inbound traffic from WAN to DMZ bypassing security policy until TCP handshake potentially resulting in Denial of Service (DoS) attack if a target host is vulnerable.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityUnknown
EPSS1.1%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| SonicOS SonicOS Gen 7 TZ-Series 7.0 | See the advisory |
| SonicOS SonicOS Gen 7 NSa-Series 7.0 | See the advisory |
| SonicOS SonicOS Gen 7 NSv-Series 7.0 | See the advisory |
| SonicOS SonicOS Gen 7 NSsp-Series 7.0 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Improper Restriction of TCP Communication Channel in HTTP/S inbound traffic from WAN to DMZ bypassing security policy until TCP handshake potentially resulting in Denial of Service (DoS) attack if a target host is vulnerable.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.