CVE-2024-53704
SonicWall SonicOS SSLVPN Improper Authentication Vulnerability
- High 8.2
- Exploited: added to CISA KEV 18 Feb 2025
- Used in ransomware campaigns
Description
An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.
Key facts
- Published
- 9 Jan 2025
- Last changed
- 4 Aug 2026
- Assigned by
- sonicwall
- KEV added
- 18 Feb 2025
- KEV fix due
- 11 Mar 2025
- Used in ransomware
- Yes, according to CISA
- EPSS
- 95.314% likely to be exploited in the next 30 days, higher than 99.867% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: partial
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 8.2CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| SonicWall | SonicOS |
|
Timeline
- 9 Jan 2025 Published
- 18 Feb 2025 CVE-2024-53704 added to CISA KEV
- 18 Feb 2025 Added to the CISA KEV catalogue