CVE-2024-40766

Improper Access Control

CVSS 3.1 Critical 9.3Known exploited (CISA KEV)

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

Description

An improper access control vulnerability has been identified in the SonicWall SonicOS management access, potentially leading to unauthorized resource access and in specific conditions, causing the firewall to crash. This issue affects SonicWall Firewall Gen 5 and Gen 6 devices, as well as Gen 7 devices running SonicOS 7.0.1-5035 and older versions.

Key data

CVSS 3.1 Critical 9.3

Score published by CISA-ADP in the CVE record.

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

Attack vector: Network
The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity: Low
No special conditions are needed. The attack can be repeated at will.
Privileges required: None
No account or privileges are needed.
User interaction: None
No action from any user is needed.
Scope: Changed
The impact can reach other components beyond the vulnerable one.
Confidentiality impact: High
Serious or total effect on the secrecy of data.
Integrity impact: None
No effect on the trustworthiness of data.
Availability impact: Low
Limited effect on availability.

Metric	Value	What it means
Attack vector	Network	The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity	Low	No special conditions are needed. The attack can be repeated at will.
Privileges required	None	No account or privileges are needed.
User interaction	None	No action from any user is needed.
Scope	Changed	The impact can reach other components beyond the vulnerable one.
Confidentiality impact	High	Serious or total effect on the secrecy of data.
Integrity impact	None	No effect on the trustworthiness of data.
Availability impact	Low	Limited effect on availability.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.

EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score: 0.18379 (18.4% probability)
Percentile: 97.3%
Scores of: Nov 10, 2026
Model: v2026.06.15

CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog: SonicWall SonicOS Improper Access Control Vulnerability
Added to the catalog: Sep 9, 2024
Federal due date: Sep 30, 2024
Ransomware campaigns: Known use

CISA assessment as of Sep 9, 2024

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation: Recorded by CISA as active
Automatable: yes
Technical impact: partial

Weakness (CWE)

CWE catalog version 5.0.

CWE-284Improper Access Control

Affected products

Products listed in the CVE record, as the CNA published them.

SonicWall SonicOS
- affected: 5.9.2.14-12o and older versions
- affected: 6.5.4.14-109n and older versions
- affected: 7.0.1-5035 and older versions

References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015vendor-advisory

Timeline

ID reservedJul 10, 2024
Record publishedAug 23, 2024
Added to CISA KEVSep 9, 2024
Record last updatedSep 21, 2026

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About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

Cloud VPS DDoS protection

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:22 UTC. Sources and licenses