CVE intelligence and bounded remediation
CVE-2025-40605 — Sonicwall Email Security Appliance 5000 Firmware security vulnerability
Medium
CVSS 5.3
A Path Traversal vulnerability has been identified in the Email Security appliance allows an attacker to manipulate file system paths by injecting crafted directory-traversal sequences (such as ../) and may access files and directories outside the intended restricted path.
- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Published
- 2025-11-20
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-23
Affected products
- sonicwall / email_security_appliance_5000_firmware
- sonicwall / email_security_appliance_5050_firmware
- sonicwall / email_security_appliance_7000_firmware
- sonicwall / email_security_appliance_7050_firmware
- sonicwall / email_security_appliance_9000_firmware
Matched remediation archetype
Path traversal, unsafe upload, and file handling
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
- Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
- Review canonicalization and containment checks across supported operating systems and storage backends.
Remediate safely
- Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
- Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
- Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.
Authoritative sources
Complete CVE record and remediation plan
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