Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-3439

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，该漏洞源于证书处理存在栈缓冲区溢出，可能导致远程攻击者使防火墙崩溃。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-3439

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A post-authentication Stack-based Buffer Overflow vulnerability in SonicOS certificate handling allows a remote attacker to crash a firewall.
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，该漏洞源于证书处理存在栈缓冲区溢出，可能导致远程攻击者使防火墙崩溃。
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-2026-3439

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-3439

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-3439 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-3439

No comments yet

Leave a comment