Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-0206

Severity CVSS v4.0:
Pending analysis
Type:
CWE-121 Stack-based Buffer Overflow
Publication date:
29/04/2026
Last modified:
05/05/2026

Description

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

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 4.90 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
4.90
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* 6.5.5.2-28n (excluding)
cpe:2.3:h:sonicwall:nsa_2650:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:nsa_3600:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:nsa_3650:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:nsa_4600:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:nsa_4650:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:nsa_5600:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:nsa_5650:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:nsa_6600:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:nsa_6650:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:sm_9200:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:sm_9250:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:sm_9400:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:sm_9450:-:*:*:*:*:*:*:*
cpe:2.3:h:sonicwall:sm_9600:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools