CISA KEV · Known exploitedCritical

CVE-2024-53704

SonicWall SonicOS

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

CVSS
9.8
EPSS
95.1%
99.9% percentile
CISA KEV
Listed
Published
2025.01.09
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability95.1%
Technical severityCVSS 9.8

Vulnerability overview

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

Affected product and versions

Product
SonicWall SonicOS
Affected versions
7.1.1-7058 and older versions, 7.1.2-7019, 8.0.0-8035, >= 7.1.1-7040 <= 7.1.1-7058
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

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

Due date: 2025.03.11
  1. 1
    Identify

    Confirm that SonicWall SonicOS and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-287
KEV added
2025.02.18
Ransomware use
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