CVE-2023-27307

Local information disclosure via undisclosed buffer operation

Published Feb 14, 2024 · Updated Aug 15, 2024

Improper buffer restrictions in Intel Thunderbolt DCH drivers for Windows before 88 allow local users to disclose information. Intel has not published the affected driver component, buffer operation, or untrusted input involved. Low-privilege local access is required; the disclosed consequence is limited to reading unspecified information, with no integrity or availability impact.

CVSS severity3.8
Low
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper buffer restrictions in Intel Thunderbolt DCH drivers for Windows before 88 allow local users to disclose information. Intel has not published the affected driver component, buffer operation, or untrusted input involved. Low-privilege local access is required; the disclosed consequence is limited to reading unspecified information, with no integrity or availability impact.

The record

CVE
CVE-2023-27307
Published
Feb 14, 2024
Updated
Aug 15, 2024
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Thunderbolt DCH driver for Windows
Classifications
CWE-92
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before version 88

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Topcon Positioning Systems, Inc. · Intel Thunderbolt DCH driver for Windowsversion=before version 88

Published CVSS scores

3.8Intel CorporationCVSS:3.1/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-92DEPRECATED: Improper Sanitization of Custom Special Characters

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo