CVE-2024-23929
Access Control in Pioneer Dmh-Wt7600Nex Firmware
Raw vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2024-23929 is a high-severity Incorrect Authorization (CWE-863) vulnerability in Pioneer Dmh-Wt7600Nex Firmware. Its CVSS base score is 7.3 (High).
Operationally, ranked at the 41th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to AC-24 (Access Control Decisions) and AC-25 (Reference Monitor) — see the control section below for these in your framework.
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-2024-23929 is a vulnerability in the telematics functionality of Pioneer DMH-WT7600NEX devices that allows network-adjacent attackers to create arbitrary files. The flaw stems from insufficient validation of user-supplied paths used in file operations. Although exploitation requires authentication, the mechanism can be bypassed, earning a CVSS v3.1 base score of 7.3 (AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H) and mapping to CWE-863 (Incorrect Authorization).
Network-adjacent attackers with low privileges can exploit this issue to write arbitrary files on the device. When combined with other vulnerabilities, it enables arbitrary code execution in the context of root, potentially compromising the device's integrity and availability without impacting confidentiality.
Mitigation guidance is provided in the Zero Day Initiative advisory ZDI-24-1044 and Pioneer's support page at https://jpn.pioneer/ja/car/dl/dmh-sz700_sf700/. Security practitioners should consult these resources for patching or workaround details specific to affected installations.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-21359
Vulnerability Data
This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Pioneer DMH-WT7600NEX devices. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the telematics functionality. The…
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issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
AC-3 directly requires correct enforcement of authorization decisions on every access request, structurally preventing incorrect checks.
AC-24 ensures access-control decisions are made and applied consistently, reducing the chance of an incorrect authorization result.
A reference monitor that is always invoked and tamper-proof forces every authorization decision through a verified, correct path.
Least-privilege assignments shrink the set of authorizations that must be checked correctly, limiting exposure to flawed checks.
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.
Requiring consistency between access rights and classification plus formal approval steps ensures that the authorization logic correctly distinguishes between entities that should and should not be granted access.
A.5.18's provisioning, revocation, review and adjustment of access rights (incl. before role changes/termination, with segregation and owner approval) directly stops incorrect authorization decisions from being exploitable in the vast majority of cases; the bounded remainder is incorrectness inside the authorization logic itself (e.g. flawed conditional or missing check) rather than rights that were wrongly granted.
A.8.3 directly mandates restricting access to information per policies via configuration, identity/group controls, isolation, and dynamic techniques that enforce correct authorization decisions, addressing most but not all slices of CWE-863 (e.g., remainder in non-access-decision authorization errors like timing or environmental factors).
Hardening callouts derived
DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.
- No fine-grained STIG row for CWE-863, a class-level weakness, and none of its children carries one either.