CVE intelligence and bounded remediation
CVE-2026-3294 — Tp-Link Re305 Firmware security vulnerability
An authentication logic vulnerability in multiple TP-Link range extenders allows an unauthenticated attacker on an adjacent network to manipulate a login parameter and reset the administrator password due to insufficient validation. Successful exploitation allows an attacker to obtain full administrative control of the affected device, potentially impacting on confidentiality, integrity, and availability.
- Severity
- High
- CVSS
- 8.8 (3.1)
- Published
- 2026-05-22
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-20, CWE-862
Affected products
- tp-link / re305_firmware
- tp-link / re360_firmware
- tp-link / re580d_firmware
- tp-link / re650_firmware
- tp-link / tl-wa860re_firmware
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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