CVE-2017-16778

MEDIUM
4.6
CVSS Score
Published: December 24, 2019 at 01:54 PM UTC
Updated: June 17, 2026 at 01:09 AM UTC
2 products affected across 1 vendorOutdoor Panel FirmwareOutdoor Panel

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.6%

Description

An access control weakness in the DTMF tone receiver of Fermax Outdoor Panel allows physical attackers to inject a Dual-Tone-Multi-Frequency (DTMF) tone to invoke an access grant that would allow physical access to a restricted floor/level. By design, only a residential unit owner may allow such an access grant. However, due to incorrect access control, an attacker could inject it via the speaker unit to perform an access grant to gain unauthorized access, as demonstrated by a loud DTMF tone representing '1' and a long '#' (697 Hz and 1209 Hz, followed by 941 Hz and 1477 Hz).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
fermax-outdoor-panel (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-863

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