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CVE-2020-15604

25
FAUCET Score

CVE-2020-15604 is an incomplete SSL server certificate validation vulnerability affecting Trend Micro Security 2019 (v15) products. This flaw, rated High severity (CVSS 7.5), could allow an unauthenticated attacker to intercept and replace legitimate software updates with malicious ones without user interaction, leading to high integrity impact. While no active exploitation, public exploit code, or significant community discussion has been observed, the vulnerability highlights a critical weakness in update verification processes.

Impacted Technologies

VendorProductVersion(s)CPE
<= 15.0CPE matchmatch criteria
cpe:2.3:a:trendmicro:antivirus\+_2019:*:*:*:*:*:*:*:*
<= 15.0CPE matchmatch criteria
cpe:2.3:a:trendmicro:internet_security_2019:*:*:*:*:*:*:*:*
<= 15.0CPE matchmatch criteria
cpe:2.3:a:trendmicro:maximum_security_2019:*:*:*:*:*:*:*:*
15CPE matchmatch criteria
cpe:2.3:a:trendmicro:officescan_cloud:15:*:*:*:*:*:*:*
<= 15.0CPE matchmatch criteria
cpe:2.3:a:trendmicro:premium_security_2019:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.62%
Probability of exploitation in next 30 days
EPSS Percentile
73.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0162 is in the 56th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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-09890
Vendor Advisory
helpcenter.trendmicro.com / ja-jp/article/TMKA-09673
Vendor Advisory
jvn.jp / en/jp/JVN60093979
Third Party Advisory
jvn.jp / jp/JVN60093979
Third Party Advisory