CVE-2023-41613Public exploit

Local code execution via missing TcApi.dll lookup

Published Dec 4, 2023 · Updated Aug 28, 2024

DLL hijacking in Hangzhou EZVIZ Network Co., Ltd. EZVIZ Studio 2.2.0 allows local users to execute code through a planted library. EzvizStudio.exe requests the absent TcApi.dll without an absolute path, so Windows searches user-writable directories and loads an attacker-planted copy. A local user must place the DLL in a searched directory and wait for a user to launch the application; the payload then runs with that user's privileges.

CVSS severity7.8
High
EPSS probability0.45%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DLL hijacking in Hangzhou EZVIZ Network Co., Ltd. EZVIZ Studio 2.2.0 allows local users to execute code through a planted library. EzvizStudio.exe requests the absent TcApi.dll without an absolute path, so Windows searches user-writable directories and loads an attacker-planted copy. A local user must place the DLL in a searched directory and wait for a user to launch the application; the payload then runs with that user's privileges.

The record

CVE
CVE-2023-41613
Published
Dec 4, 2023
Updated
Aug 28, 2024
Vendor
Hangzhou EZVIZ Network Co., Ltd.
Product
EZVIZ Studio
Classifications
CWE-427, T1574.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=2.2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Hangzhou EZVIZ Network Co., Ltd. · EZVIZ Studioversion=2.2.0

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.001Hijack Execution Flow: DLL

Public exploit references

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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