How severe is CVE-2021-25227?

CVE-2021-25227 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2021-25227 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25227?

CVE-2021-25227 primarily affects Trendmicro Antivirus. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-25227?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-25227 published?

CVE-2021-25227 was published on 2021-02-04 and last updated on 2026-06-17.

CVE-2021-25227

CVE-2021-25227 is a low-severity vulnerability in Trendmicro Antivirus with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
CVSS v2: 1.9
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Trendmicro Antivirus
Published: 2021-02-04
Last modified: 2026-06-17

Description

Trend Micro Antivirus for Mac 2021 (Consumer) is vulnerable to a memory exhaustion vulnerability that could lead to disabling all the scanning functionality within the application. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability - i.e. the attacker must already have access to the target system (either legitimately or via another exploit).

Frequently asked questions

What is CVE-2021-25227?: Trend Micro Antivirus for Mac 2021 (Consumer) is vulnerable to a memory exhaustion vulnerability that could lead to disabling all the scanning functionality within the application. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability - i.e. the attacker must already have access to the target system (either legitimately or via another exploit).
How severe is CVE-2021-25227?: CVE-2021-25227 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2021-25227 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25227?: CVE-2021-25227 primarily affects Trendmicro Antivirus. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-25227?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25227 published?: CVE-2021-25227 was published on 2021-02-04 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:trendmicro:antivirus:9.0:*:*:*:*:macos:*:*
cpe:2.3:a:trendmicro:antivirus:10.0:*:*:*:*:macos:*:*
cpe:2.3:a:trendmicro:antivirus:10.5:*:*:*:*:macos:*:*
cpe:2.3:a:trendmicro:antivirus:11.0:*:*:*:*:macos:*:*

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