How severe is CVE-2020-24560?

CVE-2020-24560 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-24560 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-24560?

CVE-2020-24560 primarily affects Trendmicro Antivirus+ 2019. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-24560?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-24560 published?

CVE-2020-24560 was published on 2020-09-24 and last updated on 2026-06-17.

CVE-2020-24560

CVE-2020-24560 is a high-severity vulnerability in Trendmicro Antivirus+ 2019 with a CVSS 3.x base score of 7.5. 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Trendmicro Antivirus+ 2019
Published: 2020-09-24
Last modified: 2026-06-17

Description

An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family of products could allow an attacker to combine this vulnerability with another attack to trick an affected client into downloading a malicious update instead of the expected one. CWE-295: Improper server certificate verification in the communication with the update server.

Frequently asked questions

What is CVE-2020-24560?: An incomplete SSL server certification validation vulnerability in the Trend Micro Security 2019 (v15) consumer family of products could allow an attacker to combine this vulnerability with another attack to trick an affected client into downloading a malicious update instead of the expected one. CWE-295: Improper server certificate verification in the communication with the update server.
How severe is CVE-2020-24560?: CVE-2020-24560 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-24560 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-24560?: CVE-2020-24560 primarily affects Trendmicro Antivirus+ 2019. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-24560?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-24560 published?: CVE-2020-24560 was published on 2020-09-24 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:trendmicro:antivirus\+_2019:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:internet_security_2019:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:maximum_security_2019:*:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:officescan_cloud:15:*:*:*:*:*:*:*
cpe:2.3:a:trendmicro:premium_security_2019:*:*:*:*:*:*:*:*

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