CVE-2026-0206: CWE-121 Stack-based buffer overflow in SonicWall SonicOS
A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-0206) involves a stack-based buffer overflow (CWE-121) in SonicWall SonicOS firmware versions 6.5.5.1-6n and older, 7.0.1-5169 and older, 7.3.1-7013 and older, and 8.1.0-8017 and older. The flaw requires post-authentication access and can be exploited remotely to cause a denial of service by crashing the firewall. No CVSS score or official remediation guidance has been published yet.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service by crashing the SonicWall firewall. This could disrupt network security and availability. There is no indication of code execution or data compromise from the provided data. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary workaround is documented, organizations should monitor SonicWall advisories for updates. Until a patch is available, limit access to the management interface to trusted users and networks to reduce risk.
CVE-2026-0206: CWE-121 Stack-based buffer overflow in SonicWall SonicOS
Description
A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-0206) involves a stack-based buffer overflow (CWE-121) in SonicWall SonicOS firmware versions 6.5.5.1-6n and older, 7.0.1-5169 and older, 7.3.1-7013 and older, and 8.1.0-8017 and older. The flaw requires post-authentication access and can be exploited remotely to cause a denial of service by crashing the firewall. No CVSS score or official remediation guidance has been published yet.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service by crashing the SonicWall firewall. This could disrupt network security and availability. There is no indication of code execution or data compromise from the provided data. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary workaround is documented, organizations should monitor SonicWall advisories for updates. Until a patch is available, limit access to the management interface to trusted users and networks to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- sonicwall
- Date Reserved
- 2025-10-30T10:54:33.982Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f2370ccbff5d861030647b
Added to database: 4/29/2026, 4:51:24 PM
Last enriched: 4/29/2026, 5:06:36 PM
Last updated: 4/29/2026, 7:28:18 PM
Views: 4
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