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CVE-2026-0399

Quick assessment

Affected
SonicWall SonicOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SonicWALL SonicOS是美国SonicWALL公司的一套专为SonicWall防火墙设备设计的操作系统。 SonicWALL SonicOS存在安全漏洞，该漏洞源于API端点边界检查不当，可能导致栈缓冲区溢出。

AI Predicted 8.1 Difficulty: Easy EPSS 0.33% · P25

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-0399

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple post-authentication stack-based buffer overflow vulnerabilities in the SonicOS management interface due to improper bounds checking in a API endpoint.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
SonicWALL SonicOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SonicWALL SonicOS是美国SonicWALL公司的一套专为SonicWall防火墙设备设计的操作系统。 SonicWALL SonicOS存在安全漏洞，该漏洞源于API端点边界检查不当，可能导致栈缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SonicWall SonicOS 7.0.1-5169 and older versions -

II. Public POCs for CVE-2026-0399

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-0399

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Vendor Advisories for CVE-2026-0399 (1)

Same Patch Batch · SonicWall · 2026-02-24 · 4 CVEs total

CVE-2026-0402 SonicWALL SonicOS 安全漏洞
CVE-2026-0400 SonicWALL SonicOS 安全漏洞
CVE-2026-0401 SonicWALL SonicOS 安全漏洞

IV. Related Vulnerabilities

Same product: SonicOS
Same vendor: SonicWall
Same weakness: CWE-121

V. Comments for CVE-2026-0399

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