Paper/Archive/CVE-2026-81939

CVE-2026-81939

SonicWall Network Security Manager (NSM) — A Zip Slip vulnerability in the SonicWall Network Security Manager (NSM) On-Prem file upload and archive processing functionality allows…

EPSS 0.7%CVSS 9.1

critical.is priorityof 100

CVSS 9.1 (ADP)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 52.4.524 × 2010.5 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Network Security Manager (NSM)4.3.0 and earlier versions–CNA

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisorypsirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0015