CVE-2025-40599Network attack vector

Administrator RCE via arbitrary file upload

Published Jul 23, 2025 · Updated Jul 25, 2025

Arbitrary file upload in SonicWall SMA 100 Series 10.2.1.15-81sv and earlier allows remote authenticated users to execute arbitrary code. The vendor has not disclosed the affected upload handler or exact validation failure; public records state only that the web management interface accepts arbitrary files. Exploitation requires administrative privileges and permits attacker-chosen files to reach the appliance, with code execution as the bounded consequence.

CVSS severity9.1
Critical
EPSS probability12.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in SonicWall SMA 100 Series 10.2.1.15-81sv and earlier allows remote authenticated users to execute arbitrary code. The vendor has not disclosed the affected upload handler or exact validation failure; public records state only that the web management interface accepts arbitrary files. Exploitation requires administrative privileges and permits attacker-chosen files to reach the appliance, with code execution as the bounded consequence.

The record

CVE
CVE-2025-40599
Published
Jul 23, 2025
Updated
Jul 25, 2025
Vendor
SonicWall
Product
Secure Mobile Access (SMA) 100 Series
Classifications
CWE-434, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.2.1.15-81sv and earlier versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

SonicWall · Secure Mobile Access (SMA) 100 Seriesversion=10.2.1.15-81sv and earlier versions

Published CVSS scores

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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