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CVE Record

CVE-2025-67246: A local information disclosure vulnerability exists in the Ludashi driver before 5.1025 due to a lack of ac...

A local information disclosure vulnerability exists in the Ludashi driver before 5.1025 due to a lack of access control in the IOCTL handler. This driver exposes a device interface accessible to a normal user and handles attacker-controlled structures containing the lower 4GB of physical addresses. The handler maps arbitrary physical memory via MmMapIoSpace and copies data back to user mode without verifying the caller's privileges or the target address range. This allows unprivileged users to read arbitrary physical memory, potentially exposing kernel data structures, kernel pointers, security tokens, and other sensitive information. This vulnerability can be further exploited to bypass the Kernel Address Space Layout Rules (KASLR) and achieve local privilege escalation.

HighCVSS 7.3Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2025-67246 is a local data exposure flaw in the Ludashi driver before version 5.1025. A normal user on an affected machine may read sensitive physical memory. This is not a remote attack, but it can help an attacker defeat kernel protections and move toward local privilege escalation.

Executive priority

Treat as high priority where Ludashi is present, especially on shared or administrator-used endpoints. It is local-only, so urgency depends on endpoint exposure and attacker foothold risk. Patch or remove quickly after confirming affected driver versions.

Technical view

The driver exposes a user-accessible device interface and lacks access control in an IOCTL handler. It maps attacker-controlled physical addresses with MmMapIoSpace and copies memory back to user mode without validating caller privilege or target range. Reported impacts include kernel data disclosure, pointer leaks, token exposure, KASLR bypass, and possible local privilege escalation.

Likely exposure

Exposure is likely limited to Windows systems with the Ludashi driver installed at versions before 5.1025. The CVE metadata does not provide CPEs or a complete affected product inventory, so organizations should validate by local software and driver inventory rather than product-name matching alone.

Exploitation context

The vulnerability requires local access with low privileges and no user interaction. The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The main risk is post-compromise escalation support: memory disclosure can weaken kernel defenses and expose sensitive kernel information.

Researcher notes

CWE mappings are CWE-269 and CWE-732. CVSS is 7.3, AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N. Public details are sufficient to understand the flawed access-control model, but the bundle lacks complete vendor product metadata, CPEs, and official remediation notes beyond the pre-5.1025 version boundary.

Mitigation direction

  • Identify systems with the Ludashi driver installed.
  • Check the installed driver version against 5.1025.
  • Update to version 5.1025 or later if vendor guidance confirms availability.
  • Remove the driver where it is not required.
  • Restrict software deployment of vulnerable Ludashi driver versions.
  • Monitor vendor and CVE sources for updated remediation guidance.

Validation and detection

  • Inventory endpoints for Ludashi driver presence and version.
  • Confirm whether normal users can access the driver device interface.
  • Review EDR telemetry for suspicious local driver access patterns.
  • Prioritize validation on shared, kiosk, developer, and high-privilege admin workstations.
  • Document systems where remediation is unavailable or vendor guidance is unclear.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-269: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · medium confidence lookup

CWE-732: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-67246 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.3CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N24.7CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

7.3High
CVSS 3.1 vector shape for CVE-2025-67246Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-269 · source CWE mapping

Improper Privilege Management

Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-732 · source CWE mapping

Incorrect Permission Assignment for Critical Resource

Incorrect Permission Assignment for Critical Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.