Vulnerability intelligence
CVE-2026-81939
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.
CVSS Score
9.1
Critical
EPSS — Exploit Probability
0.7%
Riskier than 51% of all CVEs · checked 2026-10-17
Exploitation
Not in CISA KEV
KEV does not include every exploited vulnerability
Remediation
unknown
Check vendor advisories
1 article across 1 outlet · first covered Sep 3, 2026 · latest Sep 3, 2026
Coverage timeline
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SonicWall NSM Flaws Enable Authentication Bypass and Command Executionsecurityonline.info · Sep 3, 2026