CVE-2020-28576
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 and build 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 vulnerability in Trend Micro Apex One and OfficeScan XG SP1 allows unauthenticated users to connect to the product server and obtain version and build information due to improper access controls. The disclosed version/build data could enable attackers to fingerprint specific vulnerable versions for targeted exploitation.
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 if Trend Micro Apex One or OfficeScan is installed on the server by reviewing installed programs or running product-specific diagnostic commandsAffected if The product is Apex One 2019 or OfficeScan XG
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Determine exact version and build numberAccess the product management console or use built-in version checking commands to retrieve the full version string and build numberAffected if Version matches 2019 for Apex One or XG for OfficeScan (compare against affected ranges)
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Verify management interface network exposureDetermine if the Apex One/OfficeScan management web console is accessible from network locations outside the trusted internal networkAffected if The management interface is reachable from untrusted networks without VPN or firewall restrictions
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Test unauthenticated version disclosureAttempt to access the product's version information endpoint or login page from an unauthenticated external location to confirm if version/build details are returned without credentialsAffected if Version and build information is returned to unauthenticated users making requests to the server
A user is affected if they run Apex One 2019 or OfficeScan XG with the management interface exposed to unauthenticated network access, allowing anyone to retrieve version and build details without authentication.
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-released security patch for CVE-2020-28576. In the interim, restrict network access to the management interface using firewall rules or VPN to limit exposure to unauthenticated users.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-28576 — 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-2020-28576 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