CVE-2024-53704
CriticalExploitedPublic exploitAn Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.
Published Jan 9, 2025 · Updated Aug 4, 2026
Key Facts
Patch immediately- CVE-2024-53704 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting SonicOS (Sonicwall).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 13, 2025 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 95% probability of exploitation in the next 30 days.
- Fixed versions are available, including SonicOS <=7.1.1-7058, SonicOS 7.1.1-7058.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
95%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2024-53704 brief as a PDF
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Description
An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Feb 18, 2025 | Mar 11, 2025 | Known |
| Industry KEV feed | Feb 13, 2025 | Mar 11, 2025 | Known |
| CIRCL KEV | Feb 18, 2025 | Mar 11, 2025 | Known |
| ENISA EUVD | Feb 18, 2025 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SonicOSSonicwall | 7.1.2-7019, 8.0.0-8035, >= 7.1.1-7058 and older versions | 7.1.1-7058 |
Patched Releases
SonicOS
<=7.1.1-7058
Timeline
Publicly disclosed
Jan 9, 2025
Added to Industry KEV feed
Feb 13, 2025
Added to CISA KEV
Feb 18, 2025
Added to CIRCL KEV
Feb 18, 2025
Added to ENISA EUVD
Feb 18, 2025
Last updated
Aug 4, 2026
Weakness Type
- CWE-287 Improper Authentication
References
- advisoryhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0003
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.
Affected: SonicOS (Sonicwall) versions 7.1.2-7019, 8.0.0-8035, >= 7.1.1-7058 and older versions. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Feb 13, 2025 and is known to be used in ransomware campaigns.
Yes. It was added on Feb 18, 2025 with a federal remediation due date of Mar 11, 2025.
Public exploit code is available.
Fixed versions are available, including SonicOS <=7.1.1-7058, SonicOS 7.1.1-7058.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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