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CVE-2025-40599

SonicWall Sma 210 Firmware remote code execution

9.1 CRITICALEPSS 14.0%
  1. Published23 Jul 2025

Description

An authenticated arbitrary file upload vulnerability exists in the SMA 100 series web management interface. A remote attacker with administrative privileges can exploit this flaw to upload arbitrary files to the system, potentially leading to remote code execution.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

SonicWall Sma 210 Firmware< 10.2.2.1-90sv
SonicWall Sma 410 Firmware< 10.2.2.1-90sv
SonicWall Sma 500v Firmware< 10.2.2.1-90sv

Remediation

Fixed in
SonicWall Sma 210 Firmware≥ 10.2.2.1-90sv
SonicWall Sma 410 Firmware≥ 10.2.2.1-90sv
SonicWall Sma 500v Firmware≥ 10.2.2.1-90sv

References

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Frequently asked

Is CVE-2025-40599 being actively exploited?

CVE-2025-40599 is not in the CISA KEV catalog. Its EPSS exploit probability is 14.0%.

How severe is CVE-2025-40599?

CVE-2025-40599 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 14.0% probability of exploitation.

Which products are affected by CVE-2025-40599?

Affected products include SonicWall Sma 210 Firmware, SonicWall Sma 410 Firmware, SonicWall Sma 500v Firmware.

How do I fix CVE-2025-40599?

Upgrade affected software to a fixed version, for example SonicWall Sma 210 Firmware 10.2.2.1-90sv, SonicWall Sma 410 Firmware 10.2.2.1-90sv, SonicWall Sma 500v Firmware 10.2.2.1-90sv or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-40599 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.