ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2024-53704

SonicWall SonicOS SSLVPN Improper Authentication Vulnerability

Published Jan 9, 2025 · catalog updated Aug 3, 2026 · SonicWall SonicOS

Patch now

CVE-2024-53704 is in the CISA known-exploited catalog, due Mar 11, 2025. Confirm SonicWall SonicOS against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
95.31%
Remediation
Remediation guidance
Affected products
cpe sonicwall/sonicos · vendor SonicWall SonicOS

SonicWall SonicOS contains an improper authentication vulnerability in the SSLVPN authentication mechanism that allows a remote attacker to bypass authentication. VulnCheck canary evidence. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe sonicwall/sonicos7.1.2-7019
  • cpe sonicwall/sonicos8.0.0-8035
  • vendor SonicWall SonicOSversion unspecified

How to fix CVE-2024-53704

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2024-53704 is in the CISA known-exploited catalog, due Mar 11, 2025. Confirm SonicWall SonicOS against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with 7.1.2-7019, 8.0.0-8035. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-287: Improper Authentication. EPSS 95.31%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 9, 2025 · Catalog

    Detected

    SonicWall SonicOS contains an improper authentication vulnerability in the SSLVPN authentication mechanism that allows a remote attacker to bypass authentication.

  2. Feb 18, 2025 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  3. Mar 11, 2025 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  4. Aug 3, 2026 · Catalog

    Updated

    SonicWall SonicOS contains an improper authentication vulnerability in the SSLVPN authentication mechanism that allows a remote attacker to bypass authentication.

Sources

  • CISA KEVConfirmed exploitationCVE-2024-53704

    SonicWall SonicOS contains an improper authentication vulnerability in the SSLVPN authentication mechanism that allows a remote attacker to bypass authentication.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2024-53704

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2024-53704

    30-day exploitation probability 95.3%

    first.org
  • NIST NVDVulnerability recordCVE-2024-53704

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

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2024-53704

    SonicWall SonicOS contains an improper authentication vulnerability in the SSLVPN authentication mechanism that allows a remote attacker to bypass authentication.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.