CVE-2025-6217

Information disclosure via unlocked IOCTL object

Published Jun 21, 2025 · Updated Jun 23, 2025

Information disclosure in PEAK-System Driver 8.18.0 allows local users to read sensitive data through the PCANFD_ADD_FILTERS IOCTL. The IOCTL handler operates on a shared object without proper locking, allowing its checked state to change before use. Exploitation requires low-privileged code execution; kernel code execution additionally requires chaining another flaw.

CVSS severity2.5
Low
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in PEAK-System Driver 8.18.0 allows local users to read sensitive data through the PCANFD_ADD_FILTERS IOCTL. The IOCTL handler operates on a shared object without proper locking, allowing its checked state to change before use. Exploitation requires low-privileged code execution; kernel code execution additionally requires chaining another flaw.

The record

CVE
CVE-2025-6217
Published
Jun 21, 2025
Updated
Jun 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-367, CAPEC-29, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.5NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
3.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
CAPEC-29Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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