Is CVE-2024-53704 in the CISA KEV catalog?

Yes. CVE-2024-53704 is on the CISA Known Exploited Vulnerabilities list, added 2025-02-18, and has known ransomware campaign use.

What is the CVSS severity of CVE-2024-53704?

CVE-2024-53704 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2024-53704?

CVE-2024-53704 has an EPSS score of 95.13% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2024-53704?

No published fix for CVE-2024-53704 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2025-03-11. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2024-53704

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

Description

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

CWE-287Improper Authentication

How to fix

Actively exploited, no published fix found yet

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

Federal remediation due: 2025-03-11

Known ransomware campaign use

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

95.13%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

SonicWall SonicOS SSLVPN Improper Authentication Vulnerability

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

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

Remediation due: 2025-03-11

Associated with ransomware campaigns

References

Vendor Advisory1

psirt.global.sonicwall.com

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-287 (Improper Authentication) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35082	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-35078	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-7921	Critical	9.8	100%	KEV	-
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-46805	High	8.2	100%	KEV + Ransom	-
CVE-2022-40684	Critical	9.8	100%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-31.