CVE-2024-40766
SonicWall SonicOS Improper Access Control Vulnerability
SonicWall SonicOSNetwork & edge
CVSS
9.3CriticalExploit odds (EPSS)18.4%Chance of exploitation activity in the next 30 days, higher than 97% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
- 23 Aug 2024, 06:19 UTCPublishedCVE List
- 9 Sep 2024Added to CISA KEVCISA KEV
- 20 Oct 2026, 12:00 UTCFirst reported exploitedCISA advisories
Vendor and government advisories 1
Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.
Reports 1
One outlet reports exploitation. Reports are not confirmation; each links to its source.
Description
SonicWall SonicOS contains an improper access control vulnerability that could lead to unauthorized resource access and, under certain conditions, may cause the firewall to crash.
Text from CVE List
Affected versions 3
- SonicOSaffected: 5.9.2.14-12o and older versionsCVE List
- SonicOSaffected: 6.5.4.14-109n and older versionsCVE List
- SonicOSaffected: 7.0.1-5035 and older versionsCVE List
References 4
- psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0015Advisoryvia CVE List
- sonicwall.com/support/notices/gen-7-and-newer-sonicwall-firewalls-sslvpn-recent-threat-activity/kA1VN0000000RDG0A2Referencevia CISA KEV
- nvd.nist.gov/vuln/detail/CVE-2024-40766Referencevia CISA KEV
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40766Referencevia CVE List