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Known exploited vulnerability

CVE-2024-53704

criticalCVSS 3.1 9.8In CISA KEVRansomwareEPSS 95%Published · SonicWall

The short answer

CVE-2024-53704 affects SonicWall SonicOS and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2025-02-18: attackers are using it, so patch it first.

What it is

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

Weakness: CWE-287.

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploited (CISA KEV)

Yes, since Feb 18, 2025

Federal due date Mar 11, 2025

EPSS, next 30 days

95%

Higher than 100% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

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

Affected products

SonicOS. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2024-53704 being exploited?

Yes. CISA added CVE-2024-53704 to its Known Exploited Vulnerabilities catalog on 2025-02-18, with a federal remediation due date of 2025-03-11. CISA lists it as used in ransomware campaigns.

How do I fix CVE-2024-53704?

CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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