CVE-2020-28583
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn improper access control information disclosure vulnerability in Trend Micro Apex One and OfficeScan XG SP1 could allow an unauthenticated user to connect to the product server and reveal version, build and patch information.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is an information disclosure vulnerability in Trend Micro Apex One and OfficeScan XG SP1 that allows unauthenticated remote users to connect to the product server and retrieve version, build, and patch information. The improper access control allows enumeration of software details without any authentication, which could aid attackers in planning further exploits.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 2019= xgCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify installed Trend Micro productCheck the installed software on the server for either 'Trend Micro Apex One' or 'Trend Micro OfficeScan' and note the exact version numberAffected if The installed product is Apex One 2019 or OfficeScan XG
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Verify product build and patch levelLocate the product's built version and installed patches through the management console or system information utilityAffected if The build is from 2019 for Apex One or XG for OfficeScan and no patches have been applied
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Confirm management interface network accessibilityDetermine if the Apex One/OfficeScan web console port (typically 4343 or 443) is exposed to network segments outside the trusted internal networkAffected if The management interface is reachable from untrusted networks without firewall restrictions
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Test for unauthenticated version endpoint accessFrom an untrusted network perspective, attempt to access common product information endpoints - if the server responds with version, build, or patch data without requiring login credentials, the issue is presentAffected if The server returns version, build, or patch information without authentication
A user is affected if their environment runs Apex One 2019 or OfficeScan XG with the web management console accessible to untrusted networks without authentication required for version information retrieval.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the vendor patch or update to the affected Trend Micro Apex One/OfficeScan installations to fix the improper access control. Until patched, consider restricting network access to the management interface via firewall rules or network segmentation.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-28583 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2020-28583 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data