CVE-2026-81939

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-81939
StatePUBLISHED
Assignersonicwall
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-04 19:17:29 UTC
Updated2026-09-08 19:12:59 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from ADP

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.007290000 probability, percentile 0.519040000 (date 2026-09-08)

Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SonicWall Network Security Manager NSM affected 4.3.0 and earlier versions Linux, On-Prem

References

ReferenceSourceLinkTags
psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0015 [email protected] psirt.global.sonicwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Andrei Lungu of Pentest-Tools.com (en)

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