CVE-2023-44976Known exploitationPublic exploit

EDR process termination via exposed IOCTL

Published Aug 1, 2025 · Updated Aug 1, 2025

Insufficient IOCTL access control in Hangzhou Shunwang Rentdrv2 before 2024-12-24 allows local users to terminate EDR processes. The driver's 0x22E010 dispatch path accepts a caller-supplied PID, opens that process with ZwOpenProcess, and ends it with ZwTerminateProcess. Administrative privileges are required to load or access the driver; successful abuse disables a selected security process, while other impact remains unspecified.

CVSS severity3.2
Low
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationReported
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

Insufficient IOCTL access control in Hangzhou Shunwang Rentdrv2 before 2024-12-24 allows local users to terminate EDR processes. The driver's 0x22E010 dispatch path accepts a caller-supplied PID, opens that process with ZwOpenProcess, and ends it with ZwTerminateProcess. Administrative privileges are required to load or access the driver; successful abuse disables a selected security process, while other impact remains unspecified.

The record

CVE
CVE-2023-44976
Published
Aug 1, 2025
Updated
Aug 1, 2025
Vendor
Hangzhou Shunwang Technology Co., Ltd.
Product
Rentdrv2
Classifications
CWE-782, T1562.001
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2025Record 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=1aed62a63b4802e599bbd33162319129501d603cceeb5e1eb22fd4733b3018a3
  2. Affected versionversion=9165d4f3036919a96b86d24b64d75d692802c7513f2b3054b20be40c212240a5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Hangzhou Shunwang Technology Co., Ltd. · Rentdrv2version=1aed62a63b4802e599bbd33162319129501d603cceeb5e1eb22fd4733b3018a3; version=9165d4f3036919a96b86d24b64d75d692802c7513f2b3054b20be40c212240a5

Published CVSS scores

3.2MITRECVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

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
Privilegesadmin
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-782Exposed IOCTL with Insufficient Access Control
T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

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

Reported exploitation

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