Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSummary
CVE-2023-0126 is a high-severity Path Traversal (CWE-22) vulnerability in Sonicwall Sma1000 Firmware. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 0.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2023-0126 is a pre-authentication path traversal vulnerability, tracked as CWE-22, that affects SonicWall SMA1000 firmware version 12.4.2. The flaw resides in the web interface and permits access to arbitrary files and directories stored outside the web root, carrying a CVSS 3.1 score of 7.5 that reflects network attack vector, low complexity, and no required privileges or user interaction, with high impact to confidentiality.
An unauthenticated remote attacker can exploit the issue by sending crafted requests to retrieve sensitive files from the underlying system, enabling disclosure of configuration data, credentials, or other restricted content without any prior authentication.
The SonicWall PSIRT advisory at https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0001 addresses the vulnerability and supplies mitigation guidance for affected SMA1000 deployments. The associated EPSS score remains elevated near its recorded peak of 0.9323.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-12216
Vulnerability Data
Pre-authentication path traversal vulnerability in SMA1000 firmware version 12.4.2, which allows an unauthenticated attacker to access arbitrary files and directories stored outside the web root directory.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V5.3.2
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Validates pathnames and filenames to prevent traversal outside intended directories.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.
PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing in development catches path traversal via static/dynamic analysis.
Secure SDLC mandates input validation and path sanitization that directly prevent path traversal.
Application security requirements include rules for safe file handling and canonicalization.
Secure architecture principles require least-privilege file access and directory isolation.
Secure coding standards explicitly forbid unsafe path construction and mandate safe APIs.
Information access restriction limits which files an application may read or write.