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CVE-2025-40601

Published: Nov 20, 2025Updated: Dec 12, 2025 Sources: CVE List NVD BDUCWE-121
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.1%
Top 39.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A Stack-based buffer overflow vulnerability in the SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-121

Affected Products

SonicOSSonicWallNetworking Infrastructure
sonicossonicwallNetworking Infrastructure
sonicwallcommercialUSNetworking Infrastructureaka sonicwall

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0016
psirt.global.sonicwall.com

Timeline

Published
Nov 20, 2025
Last Updated
Dec 12, 2025

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