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CVE-2024-53704VulnerabilityPublished Updated

CVE-2024-53704: SonicWall SonicOS · Improper Authentication

Affects SonicWall SonicOSSource CVE Database V5

0

Exploited in the wild · used in ransomware campaigns · KEV due 11 Mar 2025 · public detection template (Nuclei) · 95% EPSS : apply the vendor's fix or mitigations to SonicWall SonicOS now.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
KEV deadline
 US federal agencies must patch by this date; a sensible deadline for everyone else.
Ransomware
Used in ransomware campaigns
EPSS
95.3% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 9 Jan 2025

  2. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  3. Exploited in the wild: evidence found.

    Listed in CISA KEV 40 days after disclosure

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by sonicwall

    , 48 days before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. Added to CISA KEV (opens in a new tab)

    exploitation confirmed · ransomware use known

    , 40 days after disclosure

  4. KEV remediation due

    US federal deadline

    , 61 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

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

Affected software

ProductAffectedFixed in
SonicWall SonicOSAffected
  • =7.1.2-7019
  • =8.0.0-8035
  • 7.1.2-7019
  • 8.0.0-8035
Fixed in–

Check the firmware or software version for SonicWall SonicOS in the device's admin interface against the vendor advisory.

Description

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

References

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