CVE-2025-40604
criticalDownload of Code Without Integrity Check Vulnerability in the SonicWall Email Security appliance loads root filesystem images without verifying signatures, all…
Vendor / product: Sonicwall — email security appliance 5000 firmware
Download of Code Without Integrity Check Vulnerability in the SonicWall Email Security appliance loads root filesystem images without verifying signatures, allowing attackers with VMDK or datastore access to modify system files and gain persistent arbitrary code execution.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2025-11-20 15:17
Modified: 2026-10-18 20:10
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
sonicwall / email_security_appliance_5000_firmware ≤10.0.33.8195
sonicwall / email_security_appliance_5050_firmware ≤10.0.33.8195
sonicwall / email_security_appliance_7000_firmware ≤10.0.33.8195
sonicwall / email_security_appliance_7050_firmware ≤10.0.33.8195
sonicwall / email_security_appliance_9000_firmware ≤10.0.33.8195
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0018
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0018 PSIRT@sonicwall.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗