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CVE-2022-22278

24
FAUCET Score

CVE-2022-22278 is a Denial of Service (DoS) vulnerability affecting SonicWall SonicOS Content Filtering Service (CFS). An attacker can exploit this by attempting to access prohibited resources, causing the CFS to return a large 403 HTTP response message, leading to a DoS condition. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low attack complexity and no user interaction, resulting in high availability impact. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.0.1CPE matchmatch criteria
cpe:2.3:o:sonicwall:tz300p_firmware:*:*:*:*:*:*:*:*
< 7.0.1CPE matchmatch criteria
cpe:2.3:o:sonicwall:tz300w_firmware:*:*:*:*:*:*:*:*
< 7.0.1CPE matchmatch criteria
cpe:2.3:o:sonicwall:tz350_firmware:*:*:*:*:*:*:*:*
< 7.0.1CPE matchmatch criteria
cpe:2.3:o:sonicwall:tz350w_firmware:*:*:*:*:*:*:*:*
< 7.0.1.0CPE matchmatch criteria
cpe:2.3:o:sonicwall:nssp_10700_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 31st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

psirt.global.sonicwall.com / vuln-detail/SNWLID-2022-0004
Vendor Advisory