Trend Micro Apex Central: Unrestricted Upload of File with Dangerous Type
CVE-2025-47866 is a high-severity unrestricted upload of file with dangerous type vulnerability in Trend Micro Apex Central from Trend Micro, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 8.0.6955 as the first without the flaw, so updating Trend Micro Apex Central to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.32% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Trend Micro Apex Central to 8.0.6955 or a later version.
- Read the advisory on success.trendmicro.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Trend Micro | Trend Micro Apex Central | 8.0 up to, but not including, 8.0.6955 | 8.0.6955 |
| Trend Micro | Apex Central | 2019 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 4.3 | Medium | CNA (trendmicro.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
An unrestricted file upload vulnerability in a Trend Micro Apex Central widget below version 8.0.6955 could allow an attacker to upload arbitrary files on affected installations.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Unrestricted Upload of File with Dangerous Type
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
How developers prevent this class of flaw
- Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.
- When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
- Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically.
More Unrestricted Upload of File with Dangerous Type vulnerabilities (CWE-434)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- zerodayinitiative.com/advisories/ZDI-25-296/Third Party Advisory
Other vulnerabilities in Trend Micro Apex Central
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.1 High severity
- 7.5 High severity
- 7.5 High severity
Recent Unrestricted Upload of File with Dangerous Type vulnerabilities
- 8.8 High severity
- 10.0 Critical severity
- 10.0 Critical severity
- 10.0 Critical severity
- 9.9 Critical severity
- 9.9 Critical severity
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