OPSWAT AppRemover Driver up to 2017.10.02.1551 IOCTL handler ardrv.sys improper authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in OPSWAT AppRemover Driver up to 2017.10.02.1551. This affects an unknown function of the file ardrv.sys of the component IOCTL handler. This manipulation causes improper authentication. This vulnerability is handled as CVE-2026-36425. It is possible to launch the attack on the local host. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in OPSWAT AppRemover Driver up to 2017.10.02.1551 and classified as problematic. Affected by this vulnerability is some unknown processing of the file ardrv.sys of the component IOCTL handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect availability. The summary by CVE is:

An issue in OPSWAT AppRemover Driver (ardrv.sys) v2017.10.02.1551 and earlier in IOCTL handler 0x2420031. Any local user can open the device and send process termination requests without privilege validation.

It is possible to read the advisory at virustotal.com. This vulnerability is known as CVE-2026-36425 since 04/06/2026. The exploitation appears to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading eliminates this vulnerability. The vendor explains: "The driver mentioned in this CVE (ardrv.sys) is a legacy driver that has not shipped with the OESIS product for some time. On June 25, 2026 the replacement driver (libwasys.sys version 10.3.5429.0) was confirmed to NOT have this security defect either. Any consumers concerned regarding this issue should update to the June or later version of the OESIS Framework and no longer use the legacy, deprecated, unsupported driver "ardrv.sys"."

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/06/2026 CVE reserved
07/16/2026 +101 days Advisory disclosed
07/16/2026 +0 days VulDB entry created
08/29/2026 +44 days VulDB entry last update

Sourcesinfo

Advisory: virustotal.com
Status: Confirmed

CVE: CVE-2026-36425 (🔒)
GCVE (CVE): GCVE-0-2026-36425
GCVE (VulDB): GCVE-100-379651

Entryinfo

Created: 07/16/2026 23:01
Updated: 08/29/2026 08:54
Changes: 07/16/2026 23:01 (54), 08/29/2026 08:54 (9)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!