CVE-2024-53704 SonicWall SonicOS SSLVPN Improper Authentication

What is CVE-2024-53704?

CVE-2024-53704 is a high-severity authentication bypass vulnerability in Sonicwall Sonicos, published on 9 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.

Weakness: CWE-287

Which versions are affected by CVE-2024-53704?

It affects 1 product.

Products include Sonicwall Sonicos.

How do I fix CVE-2024-53704?

No fix has been published for CVE-2024-53704 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 11 Mar 2025.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2024-53704 being exploited?

Yes. Attackers have exploited CVE-2024-53704 in the wild since at least 18 Feb 2025, including in ransomware campaigns.

Public exploit code: 1 Nuclei template and 3 proofs of concept on GitHub.

Other vulnerabilities in Sonicwall Sonicos

• CVE-2020-5135 SonicWall SonicOS Buffer Overflow Exploited Critical 9.8
• CVE-2024-40766 SonicWall SonicOS Improper Access Control Exploited Critical 9.3
• CVE-2025-40600 Denial of service in SonicOS Critical 9.8
• CVE-2024-22394 Auth bypass in SonicOS Critical 9.8
• CVE-2022-22274 Memory corruption in SonicOS Critical 9.8

All Sonicwall Sonicos vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-rwgq-wj29-fx3r.