VDB-214123 · CVE-2022-44650 · ZDI-22-1616

Trend Micro Apex One Change Prevention Service memory corruption

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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Trend Micro Apex One. It has been rated as critical. This affects an unknown function of the component Change Prevention Service. This manipulation causes memory corruption. This vulnerability appears as CVE-2022-44650. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Trend Micro Apex One (version unknown) and classified as critical. Affected by this vulnerability is an unknown function of the component Change Prevention Service. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A memory corruption vulnerability in the Unauthorized Change Prevention service of Trend Micro Apex One and Apex One as a Service could allow a local attacker to elevate privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The weakness was presented 11/21/2022 with Trend Micro as ZDI-22-1616. It is possible to read the advisory at zerodayinitiative.com. This vulnerability is known as CVE-2022-44650 since 11/03/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/29/2025).

Upgrading eliminates this vulnerability.

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

Productinfo

Type

Endpoint Management Software

Vendor

Trend Micro

Name

Apex One

License

commercial

Website

Vendor: https://www.trendmicro.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/03/2022 🔍
11/21/2022 +18 days 🔍
11/21/2022 +0 days 🔍
04/29/2025 +890 days 🔍

Sourcesinfo

Vendor: trendmicro.com

Advisory: ZDI-22-1616
Organization: Trend Micro
Status: Confirmed

CVE: CVE-2022-44650 (🔍)
GCVE (CVE): GCVE-0-2022-44650
GCVE (VulDB): GCVE-100-214123

Entryinfo

Created: 11/21/2022 21:21
Updated: 04/29/2025 12:04
Changes: 11/21/2022 21:21 (40), 12/21/2022 14:38 (11), 04/29/2025 12:04 (17)
Complete: 🔍
Cache ID: 216::103