Medium severity · published Feb 24, 2026
CVE-2026-0402
A post-authentication Out-of-bounds Read vulnerability in SonicOS allows a remote attacker to crash a firewall
4.9
CVSS
0.4%
EPSS
No
On KEV
Description
A post-authentication Out-of-bounds Read vulnerability in SonicOS allows a remote attacker to crash a firewall.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SO
Sonicos · Sonicwall
before 7.3.2-7010; before 8.2.0-8009 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-0402
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-0402
Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0001
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