CVE-2026-81939
SonicWall Network Security Manager Path Traversal 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.
INFO
Published Date :
Sept. 4, 2026, 7:17 p.m.
Last Modified :
Sept. 4, 2026, 7:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Update SonicWall Network Security Manager to the latest version.
- Apply any available security patches for NSM.
- Verify archive processing input sanitization.
- Restrict file upload permissions where possible.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-81939.
| URL | Resource |
|---|---|
| https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0015 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-81939 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-81939
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-81939 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-81939 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Sep. 04, 2026
Action Type Old Value New Value Added 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. Added CWE CWE-22 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/81xxx/CVE-2026-81939.json">CVE-2026-81939</a> Added Reference https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0015