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CVE Record

CVE-2020-28578: A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 could allow an unauthentica...

A vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 could allow an unauthenticated, remote attacker to send a specially crafted HTTP message and achieve remote code execution with elevated privileges.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2020-28578 affects Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2. The reported impact is unauthenticated remote code execution with elevated privileges through a specially crafted HTTP message. That is serious for any exposed appliance, but the provided evidence does not include CVSS, CWE, patch details, or active exploitation confirmation.

Executive priority

Treat as high priority where the appliance is deployed, especially if reachable from untrusted networks. The business concern is privileged remote code execution on a security gateway product, but urgency should be calibrated after confirming actual version exposure and vendor remediation guidance.

Technical view

The CVE description states that an unauthenticated remote attacker can send a crafted HTTP message to Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 and achieve elevated remote code execution. The bundle does not identify the vulnerable component, root cause, exploit preconditions beyond HTTP reachability, or vendor-fixed versions.

Likely exposure

Organizations running Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 are the stated affected population. Risk is higher where appliance HTTP services are reachable from untrusted networks or internet-facing paths.

Exploitation context

The provided bundle does not show CISA KEV listing and does not establish active exploitation. Public references include Trend Micro and Tenable advisories, but the supplied evidence does not include exploit status details.

Researcher notes

Evidence is incomplete: no CVSS vector, CWE, root-cause detail, or patch version is present in the bundle. Keep affected scope limited to Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 unless vendor advisories state otherwise.

Mitigation direction

  • Review Trend Micro advisory 000281954 for vendor-approved fixes or replacement guidance.
  • Prioritize upgrading or remediating any appliance confirmed as version 6.5 SP2.
  • Restrict appliance HTTP access to trusted administrative and proxy paths only.
  • Apply compensating monitoring until vendor remediation status is confirmed.

Validation and detection

  • Inventory Trend Micro InterScan Web Security Virtual Appliance deployments.
  • Confirm whether any instance is running version 6.5 SP2.
  • Map which networks can reach the appliance HTTP service.
  • Review Trend Micro and Tenable advisories for version-specific remediation details.
  • Check security logs for unusual HTTP activity against affected appliances.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-28578 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Trend MicroTrend Micro InterScan Web Security Virtual Appliance6.5 SP2Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.