CVE intelligence and bounded remediation
CVE-2026-2550 — A vulnerability was found in EFM iptime A6004MX 14.18.2
A vulnerability was found in EFM iptime A6004MX 14.18.2. Affected is the function commit_vpncli_file_upload of the file /cgi/timepro.cgi. The manipulation results in unrestricted upload. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Published
- 2026-02-16
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-284, CWE-434
Affected products
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Matched remediation archetype
Authorization bypass, IDOR, and cross-tenant access
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
- Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
- Use synthetic fixtures to compare intended access matrices without accessing another user's real data.
Remediate safely
- Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
- Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
- Add deny-by-default policy tests for horizontal and vertical access across every affected transport.
Authoritative sources
Complete CVE record and remediation plan
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