Exploited CVEs / SonicWall / CVE-2024-53704
CVE-2024-53704
SonicWall SonicOS SSLVPN Improper Authentication Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted, and the vulnerability is known to be used in ransomware campaigns. Federal agencies were required to remediate by 2025-03-11 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: SonicWall PSIRT Advisories, linked below.
Actively exploited SonicWall SonicOS vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2025-02-18.
Risk summary
Updated July 25, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Senserva AI Opinion for CVE-2024-53704
This flaw lets a remote attacker bypass SSLVPN authentication entirely in SonicWall SonicOS, meaning anyone who exposes the SSLVPN portal to the internet is directly reachable without valid credentials. It carries Severity Critical (CVSS 9.8) with a 95% EPSS score, is confirmed exploited in CISA KEV since 2025-02-18, and has been observed in ransomware campaigns. The combination of authentication bypass plus active ransomware use makes this a high urgency exposure for any perimeter SonicWall firewall.
Do this: Patch SonicOS to a fixed firmware version immediately, and if you cannot patch now, disable or restrict SSLVPN access at the perimeter until you do.
AI-generated from public data, 2026-07-22. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2024-53704
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for CVE-2024-53704
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
CISA required action
Federal (BOD 22-01) remediation due date: 2025-03-11 (past due).
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Official fix for CVE-2024-53704
The authoritative fix and affected-version list are published by the vendor. Find the SonicOS advisory on SonicWall PSIRT Advisories.
Common questions about CVE-2024-53704
Is CVE-2024-53704 actively exploited?
Yes. CVE-2024-53704 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2025-02-18, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 95%. CISA also reports it is known to be used in ransomware campaigns.
What is the CISA deadline and required action for CVE-2024-53704?
CISA set the federal (BOD 22-01) remediation due date at 2025-03-11, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
What fixes CVE-2024-53704?
The authoritative fix is in the vendor advisory: see SonicWall PSIRT Advisories for the patched SonicOS versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2024-53704?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2024-53704's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).
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All SonicWall exploited CVEs on one page: SonicWall vulnerabilities actively exploited.
Authoritative references
Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.
