CVE-2025-5833VulnerabilityPublished 25 Jun 2025

CVE-2025-5833: Pioneer DMH-WT7600NEX · Insufficient Verification of Data Authenticity

Affects Pioneer DMH-WT7600NEXSource CVE Database V5

Not known to be exploited · CVSS 4.6 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.0 base score

4.6Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector: Physical
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Physical: The attack requires the attacker to physically touch or manipulate the vulnerable component. Physical interaction may be brief or persistent.
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Pioneer DMH-WT7600NEX	Affected =3.05	Fixed in–

AI-suggested

Given the physical access requirement and lack of patches, mitigation should focus on physical security and operational controls. European organizations should: 1) Implement strict physical access controls to vehicles, including secure parking and monitoring to prevent unauthorized access. 2) During vehicle servicing or transfers, ensure trusted personnel handle devices and inspect for tampering. 3) Employ tamper-evident seals or monitoring on infotainment units to detect unauthorized physical access. 4) Monitor device behavior for anomalies that could indicate exploitation attempts, such as unexpected configuration changes. 5) Engage with Pioneer and authorized vendors to prioritize firmware updates or patches addressing this vulnerability. 6) Consider disabling or restricting use of the affected device in high-security environments until a patch is available. 7) Incorporate this vulnerability into risk assessments and incident response plans related to vehicle cybersecurity. These steps go beyond generic advice by focusing on the physical security context and operational procedures specific to automotive infotainment systems.

Description

Pioneer DMH-WT7600NEX Root Filesystem Insufficient Verification of Data Authenticity Vulnerability. This vulnerability allows physically present attackers to bypass authentication on affected installations of Pioneer DMH-WT7600NEX devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of the operating system. The issue results from the lack of properly configured protection for the root file system. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-26077.

Impact

For European organizations, especially those in automotive manufacturing, fleet management, or vehicle leasing sectors, this vulnerability poses a risk to vehicle security and integrity. An attacker with physical access to a vehicle equipped with the affected Pioneer DMH-WT7600NEX device could bypass authentication controls, potentially allowing unauthorized modification of system configurations or firmware. This could lead to unauthorized control over infotainment functions, potential disruption of vehicle systems integrated with the multimedia unit, or the introduction of malicious code. While the vulnerability does not directly impact confidentiality or availability, the integrity compromise could facilitate further attacks or persistent unauthorized access. Organizations relying on these devices in their vehicle fleets may face operational risks, reputational damage, and increased costs due to potential exploitation. The requirement for physical access limits remote exploitation but does not eliminate risk in scenarios such as vehicle servicing, rentals, or theft. Additionally, the lack of patches increases exposure time until mitigations or updates are available.

CWE-345Insufficient Verification of Data Authenticity (opens in a new tab)
Class weaknessOWASP Top 10 A08:2025: Software or Data Integrity Failures (opens in a new tab)
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
OWASP Cheat Sheets
XML Security (opens in a new tab)
REST Security (opens in a new tab)
JSON Web Token for Java (opens in a new tab)
REST Assessment (opens in a new tab)
Cross-Site Request Forgery Prevention (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.2 (opens in a new tab)
V3.5.3 (opens in a new tab)
V13.2.6 (opens in a new tab)
Attack patterns
JSON Hijacking (aka JavaScript Hijacking) (opens in a new tab)
Cache Poisoning (opens in a new tab)
DNS Cache Poisoning (opens in a new tab)
Spoofing of UDDI/ebXML Messages (opens in a new tab)
Application API Message Manipulation via Man-in-the-Middle (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

zerodayinitiative.com/advisories/ZDI-25-350/ (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Jun 2025, 18:26 UTC

WeaknessesCWE-345

Technical details

References

Community reviews

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