February 18, 2025 · Applied Cybernetics Group
CVE-2024-53704 — SonicWall SonicOS
known ransomware use
SonicWall SonicOS SSLVPN Improper Authentication Vulnerability
- Added to KEV
2025-02-18- Federal due date
2025-03-11- Vendor
- SonicWall
- Product
- SonicOS
- EPSS
- 99.9th percentile (score 0.951, as of
2026-09-16) - NVD CVSS v3.1
- 9.8 (CRITICAL)
- Ransomware use
- Known
- ATT&CK
- T1021.001 , T1078.004 , T1083 , T1199 , T1212 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2024-53704
CISA short description
SonicWall SonicOS contains an improper authentication vulnerability in the SSLVPN authentication mechanism that allows a remote attacker to bypass authentication.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
NVD description
An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.