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CVE-2025-40599

critical

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.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0014

https://www.securityweek.com/sonicwall-patches-critical-sma-100-vulnerability-warns-of-recent-malware-attack/

https://www.helpnetsecurity.com/2025/07/24/sonicwall-fixes-critical-flaw-sma-appliances-urges-customers-to-check-for-compromise-cve-2025-40599/

https://www.bleepingcomputer.com/news/security/sonicwall-warns-of-critical-rce-flaw-in-sma-100-VPN-appliances/

https://thehackernews.com/2025/07/sophos-and-sonicwall-patch-critical-rce.html

https://securityaffairs.com/180328/security/sonicwall-fixed-critical-flaw-in-sma-100-devices-exploited-in-overstep-malware-attacks.html

Details

Source: Mitre, NVD

Published: 2025-07-23

Updated: 2025-07-25

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.1

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

Severity: Critical

EPSS

EPSS: 0.00125

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability Being Monitored