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CVE-2021-44023

23
FAUCET Score

CVE-2021-44023 is a link following denial-of-service (DoS) vulnerability affecting Trend Micro Security (Consumer) 2021 products. An attacker can exploit the PC Health Checkup feature to create symbolic links, leading to unauthorized file modification and a denial-of-service condition. With a CVSS score of 7.1 (High), this vulnerability has a low attack complexity and requires local privileges, but can result in high integrity and availability impacts. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 17.0CPE matchmatch criteria
cpe:2.3:a:trendmicro:antivirus\+_security_2021:*:*:*:*:*:*:*:*
<= 17.0CPE matchmatch criteria
cpe:2.3:a:trendmicro:internet_security_2021:*:*:*:*:*:*:*:*
<= 17.0CPE matchmatch criteria
cpe:2.3:a:trendmicro:maximum_security_2021:*:*:*:*:*:*:*:*
<= 17.0CPE matchmatch criteria
cpe:2.3:a:trendmicro:premium_security_2021:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 73rd percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

helpcenter.trendmicro.com / en-us/article/tmka-10867
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-21-1536
Third Party AdvisoryVDB Entry