Low severity · published Mar 31, 2026
CVE-2026-3469
A denial-of-service (DoS) vulnerability exists due to improper input validation in the SonicWall Email Security appliance, allowing a remote authenticated attacker as admin user…
2.7
CVSS
0.4%
EPSS
No
On KEV
Description
A denial-of-service (DoS) vulnerability exists due to improper input validation in the SonicWall Email Security appliance, allowing a remote authenticated attacker as admin user to cause the application to become unresponsive.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ES
Email Security · SonicWall
10.0.34.8215 and earlier versions; 10.0.34.8223 and earlier versions · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3469
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3469
Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0002
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