1. Home
  2. CVE Database
  3. CVE-2026-0206
MEDIUM · 4.9

CVE-2026-0206

A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.

Vulnerability Description

A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.

CVSS Score

4.9

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
SonicwallSonicos< 6.5.5.2-28n
SonicwallNsa 2650-
SonicwallNsa 3600-
SonicwallNsa 3650-
SonicwallNsa 4600-
SonicwallNsa 4650-
SonicwallNsa 5600-
SonicwallNsa 5650-
SonicwallNsa 6600-
SonicwallNsa 6650-
SonicwallSm 9200-
SonicwallSm 9250-
SonicwallSm 9400-
SonicwallSm 9450-
SonicwallSm 9600-
SonicwallSm 9650-
SonicwallSoho 250-
SonicwallSoho 250W-
SonicwallSohow-
SonicwallTz 300-

Related Weaknesses (CWE)

CWE-121

References

FAQ

What is CVE-2026-0206?

CVE-2026-0206 is a vulnerability with a CVSS score of 4.9 (MEDIUM). A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.

How severe is CVE-2026-0206?

CVE-2026-0206 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-0206?

Check the references section above for vendor advisories and patch information. Affected products include: Sonicwall Sonicos, Sonicwall Nsa 2650, Sonicwall Nsa 3600, Sonicwall Nsa 3650, Sonicwall Nsa 4600.