Forwarded from Taiwan Computer Emergency Response Coordination Center Cybersecurity Information Alert TWCERTCC-200-202609-00000002

[Content Description]
SonicWall has released information regarding major security vulnerabilities in NSM On-Prem(CVE-2026-78327，CVSS：9.1 and CVE-2026-81939，CVSS：9.1). CVE-2026-81939 is a Zip Slip vulnerability that exists in the file upload and compressed file processing functions of NSM On-Prem. Attackers can exploit specially crafted files to extract files outside the intended target directory; CVE-2026-78327 is an OS Command Injection vulnerability that allows authenticated attackers with SuperAdmin privileges to execute arbitrary commands on the underlying host, thereby leading to remote code execution.

[Affected Platforms]
Network Security Manager (NSM) On-Prem versions 4.3.0 (inclusive) and earlier

[Recommended Measures]
Please update to the following version: Network Security Manager (NSM) On-Prem version 4.3.1-R4 (inclusive) or later

[References]
1. https://www.twcert.org.tw/tw/cp-169-11182-39d2f-1.html