Security Resilience

CVE-2023-0126

Path Traversal in Sonicwall Sma1000 Firmware 12.4.2

High EPSSPath Traversal
Published
19 January 2023
Modified
03 April 2025
Patch / advisory
View advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.73 99.5th percentile
Risk Priority 83 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

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 Data Obfuscation (T1001); ranked in the top 0.5% 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)

A01:2025 Broken Access Control

EU & UK References

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)
CWE-22

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
T1016.001 Internet Connection Discovery Discovery
Adversaries may check for Internet connectivity on compromised systems.
attack.mitre.org →
T1018 Remote System Discovery Discovery
Adversaries may attempt to get a listing of other systems by IP address, hostname, or other logical identifier on a network that may be used for Lateral Movement from the current system.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-32820Same vendor: Sonicwall
CVE-2019-7483Same vendor: Sonicwall
CVE-2023-34129Same vendor: Sonicwall
CVE-2023-34135Same vendor: Sonicwall
CVE-2023-34125Same vendor: Sonicwall
CVE-2021-20034Same vendor: Sonicwall
CVE-2021-20023Same vendor: Sonicwall
CVE-2025-54140Shared CWE-22
CVE-2024-43395Shared CWE-22
CVE-2023-47679Shared CWE-22

Affected Assets

sonicwall
sma1000 firmware
12.4.2

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • 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.

SI-10 Information Input Validation
addresses: CWE-22

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.

PR.PS-02 partial match
blocks

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 none match
blocks

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.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References