CVE-2026-30769

Local privilege escalation via unrestricted physical-memory access

Published Apr 29, 2026 · Updated Apr 29, 2026

Improper input validation in EnTech Taiwan TVicPort 4.0 allows local users to escalate privileges through a crafted driver request. The TVicPort64.sys handler exposes IOCTL 0x80002008 through a device with a NULL DACL and permits user-controlled physical-memory reads and writes. Any local user able to open the device can alter kernel-accessible memory, enabling elevated code execution or security-control bypass.

CVSS severity7.8
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in EnTech Taiwan TVicPort 4.0 allows local users to escalate privileges through a crafted driver request. The TVicPort64.sys handler exposes IOCTL 0x80002008 through a device with a NULL DACL and permits user-controlled physical-memory reads and writes. Any local user able to open the device can alter kernel-accessible memory, enabling elevated code execution or security-control bypass.

The record

CVE
CVE-2026-30769
Published
Apr 29, 2026
Updated
Apr 29, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 2026Record 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

7.8INCIBE-CERTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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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-20Improper Input Validation
T1068Exploitation for Privilege Escalation

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

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Your stack

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