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CVE-2026-81939

Quick assessment

Affected
SonicWall Network Security Manager (NSM)
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 Network Security Manager是美国SonicWALL公司的一款网络安全管理系统。 SonicWALL Network Security Manager (NSM) 4.3.0及之前版本存在路径遍历漏洞，该漏洞源于文件上传和归档处理功能存在Zip Slip漏洞（任意文件覆盖漏洞），可能导致攻击者使用特制归档将文件提取到预期目标目录之外。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.68% · P52

Affected Version Matrix 1

VendorProduct Version RangeStatus
SonicWall Network Security Manager (NSM) 4.3.0 and earlier versions affected
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I. Basic Information for CVE-2026-81939

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Zip Slip vulnerability in the SonicWall Network Security Manager (NSM) On-Prem file upload and archive processing functionality allows an attacker to extract files outside the intended destination directory using a specially crafted archive.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
SonicWALL Network Security Manager 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SonicWALL Network Security Manager是美国SonicWALL公司的一款网络安全管理系统。 SonicWALL Network Security Manager (NSM) 4.3.0及之前版本存在路径遍历漏洞，该漏洞源于文件上传和归档处理功能存在Zip Slip漏洞（任意文件覆盖漏洞），可能导致攻击者使用特制归档将文件提取到预期目标目录之外。
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 Network Security Manager (NSM) 4.3.0 and earlier versions -

II. Public POCs for CVE-2026-81939

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III. Intelligence Information for CVE-2026-81939

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Vendor Advisories for CVE-2026-81939 (1)

Same Patch Batch · SonicWall · 2026-09-04 · 3 CVEs total

CVE-2026-78328 SonicWALL Network Security Manager 授权问题漏洞
CVE-2026-78327 SonicWALL Network Security Manager 命令注入漏洞

IV. Related Vulnerabilities

Same product: Network Security Manager (NSM)
Same vendor: SonicWall
Same weakness: CWE-22

V. Comments for CVE-2026-81939

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