Security readout for executives and security teams
Plain-English summary
A logged-in user of Trend Micro Smart Protection Server could make the server run unintended operating-system commands through a vulnerable web handler. The issue affects older 2.5, 2.6, and 3.0 builds. Business urgency depends on whether those legacy systems still exist and who can authenticate to them.
Executive priority
Treat as high priority if any affected server remains in use. The issue can lead to command execution after authentication, which can turn a compromised or overprivileged account into server-level impact.
Technical view
CVE-2016-6266 affects ccca_ajaxhandler.php in Trend Micro Smart Protection Server. The CVE describes shell metacharacter handling flaws in register, save_stting, and test_connection actions across host, apikey, and enable parameters, allowing remote authenticated arbitrary command execution in vulnerable builds.
Likely exposure
Exposure is likely limited to organizations still running Smart Protection Server 2.5 before build 2200, 2.6 before build 2106, or 3.0 before build 1330. Risk increases if the web management surface is reachable beyond trusted administrators.
Exploitation context
The provided sources describe authenticated remote command execution. The bundle does not mark the CVE as KEV, and no cited source states active exploitation. Public technical research exists, so defenders should assume the bug is understood even without confirmed exploitation evidence.
Researcher notes
The CVE record gives affected version boundaries and vulnerable parameters but no CVSS, CWE, or detailed vendor remediation text in the bundle. Avoid assuming unauthenticated exposure or current exploitation without additional evidence.
Mitigation direction
- Upgrade affected Smart Protection Server builds to the vendor-fixed build or later.
- Review Trend Micro guidance for exact supported upgrade paths.
- Restrict access to the Smart Protection Server management interface.
- Remove or disable unnecessary user accounts with access to the server.
- Review logs for suspicious authenticated management activity.
Validation and detection
- Inventory Trend Micro Smart Protection Server versions and build numbers.
- Confirm no instances run below the fixed builds named in the CVE.
- Verify management access is limited to trusted networks and users.
- Check authentication logs for unexpected users or unusual access times.
- Document upgrade status and compensating controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2016-6266 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://qkaiser.github.io/pentesting/trendmicro/2016/08/08/trendmicro-sps/CVE reference · x_refsource_MISC
- https://success.trendmicro.com/solution/1114913CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.