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CVE-2020-28577

20
FAUCET Score

CVE-2020-28577 is an improper access control vulnerability affecting Trend Micro Apex One and OfficeScan XG SP1. An unauthenticated attacker can exploit this to disclose server hostnames and database names. Rated Medium (CVSS 5.3), this vulnerability has a low impact on confidentiality with no integrity or availability impact, and can be exploited remotely with low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2019CPE matchmatch criteria
cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*
xgCPE matchmatch criteria
cpe:2.3:a:trendmicro:officescan:xg:sp1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.21%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0321 is in the 82nd percentile among its peer group of 23,723 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

success.trendmicro.com / solution/000281947
Vendor Advisory
success.trendmicro.com / solution/000281949
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-20-1376
Third Party AdvisoryVDB Entry