Unauthorized management access via undisclosed access-control flaw
Published Aug 23, 2024 · Updated Oct 21, 2025
Improper access control in SonicOS on Gen 5, Gen 6, and affected Gen 7 firewalls allows remote attackers to access resources or cause a crash. SonicWall has not disclosed the specific management endpoint or the access-control operation that mishandles an unauthenticated request. No credentials or user interaction are required; exploitation can expose protected resources, while specific request conditions interrupt service by crashing the firewall.
Summary
What happened
Improper access control in SonicOS on Gen 5, Gen 6, and affected Gen 7 firewalls allows remote attackers to access resources or cause a crash. SonicWall has not disclosed the specific management endpoint or the access-control operation that mishandles an unauthenticated request. No credentials or user interaction are required; exploitation can expose protected resources, while specific request conditions interrupt service by crashing the firewall.
The record
- CVE
- CVE-2024-40766
- Published
- Aug 23, 2024
- Updated
- Oct 21, 2025
- Vendor
- SonicWall
- Product
- SonicOS
- Classifications
- CWE-284, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 23, 2024CVE publishedPublication date reported by the CVE source.
- Oct 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=5.9.2.14-12o
- Affected versionversion=0 <=6.5.4.14-109n
- Affected versionversion=0 <=7.0.1-5035
- Affected versionversion=5.9.2.14-12o and older versions
- Affected versionversion=6.5.4.14-109n and older versions
- Affected versionversion=7.0.1-5035 and older versions
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Ransomware campaigns exploiting SonicOSransomware
- CISA Known Exploited Vulnerabilities listingknown exploited catalog
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo