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CVE-2026-82308

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.

在 SonicOS SSL-VPN 服务中发现了一个认证前堆缓冲区溢出漏洞，该漏洞可能使远程未认证攻击者导致应用层拒绝服务。

AI Predicted 6.5 Difficulty: Moderate Updated Nov 07, 2026

Possible ATT&CK Techniques 2 AI

T1499 · Endpoint Denial of Service T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

Vendor	Product	Version Range	Status
SonicWall	SonicOS	`7.3.3-7015 and older versions`	affected
		`8.2.2-8015 and older versions`	affected

Updated Nov 07, 2026

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Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

A pre-authentication heap-based buffer overflow vulnerability has been identified in the SonicOS SSL-VPN service, which could potentially enable a remote unauthenticated attacker to cause an application level denial of service.

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

堆缓冲区溢出

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
SonicWall	SonicOS	7.3.3-7015 and older versions	-

II. Public POCs for CVE-2026-82308

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-82308

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Other References for CVE-2026-82308 (1)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014 vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-82308

Same Patch Batch · SonicWall · 2026-11-06 · 7 CVEs total

CVE-2026-107155		SonicOS 管理接口宽松跨域策略漏洞
CVE-2026-107154		SonicOS 会话验证漏洞允许远程未授权攻击
CVE-2026-19868		SonicOS SSLVPN 认证绕过漏洞
CVE-2026-19703		SonicOS 虚拟设备弱密码哈希漏洞
CVE-2026-77708		SonicOS TACACS+ 客户端认证前栈溢出导致拒绝服务
CVE-2026-77709		SonicOS TACACS+ 客户端认证前堆溢出漏洞

IV. Related Vulnerabilities

Same product: SonicOS

Same vendor: SonicWall

Same weakness: CWE-122