7.5
HIGH
CVE-2021-23139
Trend Micro Apex One/CWSS Null Pointer Vulnerability
Description

A null pointer vulnerability in Trend Micro Apex One and Worry-Free Business Security 10.0 SP1 could allow an attacker to crash the CGI program on affected installations.

INFO

Published Date :

Oct. 21, 2021, 8:15 a.m.

Last Modified :

Oct. 26, 2021, 1:33 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-23139 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Trendmicro apex_one
2 Trendmicro worry-free_business_security
3 Trendmicro worry-free_business_security_services
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-23139.

URL Resource
https://success.trendmicro.com/solution/000289229 Patch Vendor Advisory
https://success.trendmicro.com/solution/000289230 Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-23139 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-23139 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Oct. 26, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://success.trendmicro.com/solution/000289229 No Types Assigned https://success.trendmicro.com/solution/000289229 Patch, Vendor Advisory
    Changed Reference Type https://success.trendmicro.com/solution/000289230 No Types Assigned https://success.trendmicro.com/solution/000289230 Patch, Vendor Advisory
    Added CWE NIST CWE-476
    Added CPE Configuration AND OR *cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:* *cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:saas:*:*:* *cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:* *cpe:2.3:a:trendmicro:worry-free_business_security_services:-:*:*:*:saas:*:*:* OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-23139 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-23139 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.11 }} 0.01%

score

0.45405

percentile

CVSS31 - Vulnerability Scoring System
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