Vulnerability

CVE-2024-40766

SonicWall SonicOS: improper access control in management access

Most severe levelDEFCON 4 · Moderate risk

Official data

CVSS 3.1
9.8 · criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-284
EPSS
18.38% probability of exploitation in the next 30 days, higher than 97% of CVEs
CISA KEV catalogue
Yes, since 9 September 2024 · used in ransomware campaigns

Sources: NVD (CVSS, weakness, publication), FIRST (EPSS), CISA (KEV catalogue).
Data read on 4 November 2026.

Timeline

  1. 23 August 2024Published on NVD
  2. 9 September 2024Added to the CISA KEV catalogue

In DefenceLevel briefings1 day

  • 21 October 2026New in the last 24 hoursDEFCON 4

Last 12 months.

The full analysis is in the briefingThe full analysis is in your archive

Why it matters now, who is affected and what to do: every day at 05:00 UTC, for subscribers.Why it matters, who is affected and what to do, as in the daily briefing.

More exploited SonicWall vulnerabilities

Official records: NVDCVE.org

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